21579987840

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{307}}^1\times {\mathrm{1181}}^1$

素因数の和:1541

約数の個数: 256

約数和(自身を含む): 71296727040

約数和(自身を除く): 49716739200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 128, 155, 160, 186, 192, 240, 248, 307, 310, 320, 372, 384, 465, 480, 496, 614, 620, 640, 744, 921, 930, 960, 992, 1181, 1228, 1240, 1488, 1535, 1842, 1860, 1920, 1984, 2362, 2456, 2480, 2976, 3070, 3543, 3684, 3720, 3968, 4605, 4724, 4912, 4960, 5905, 5952, 6140, 7086, 7368, 7440, 9210, 9448, 9517, 9824, 9920, 11810, 11904, 12280, 14172, 14736, 14880, 17715, 18420, 18896, 19034, 19648, 19840, 23620, 24560, 28344, 28551, 29472, 29760, 35430, 36611, 36840, 37792, 38068, 39296, 47240, 47585, 49120, 56688, 57102, 58944, 59520, 70860, 73222, 73680, 75584, 76136, 94480, 95170, 98240, 109833, 113376, 114204, 117888, 141720, 142755, 146444, 147360, 151168, 152272, 183055, 188960, 190340, 196480, 219666, 226752, 228408, 283440, 285510, 292888, 294720, 304544, 362567, 366110, 377920, 380680, 439332, 453504, 456816, 549165, 566880, 571020, 585776, 589440, 609088, 725134, 732220, 755840, 761360, 878664, 913632, 1087701, 1098330, 1133760, 1142040, 1171552, 1218176, 1450268, 1464440, 1522720, 1757328, 1812835, 1827264, 2175402, 2196660, 2267520, 2284080, 2343104, 2900536, 2928880, 3045440, 3514656, 3625670, 3654528, 4350804, 4393320, 4568160, 4686208, 5438505, 5801072, 5857760, 6090880, 7029312, 7251340, 8701608, 8786640, 9136320, 10877010, 11239577, 11602144, 11715520, 14058624, 14502680, 17403216, 17573280, 18272640, 21754020, 22479154, 23204288, 23431040, 29005360, 33718731, 34806432, 35146560, 43508040, 44958308, 46408576, 56197885, 58010720, 67437462, 69612864, 70293120, 87016080, 89916616, 112395770, 116021440, 134874924, 139225728, 168593655, 174032160, 179833232, 224791540, 232042880, 269749848, 337187310, 348064320, 359666464, 449583080, 539499696, 674374620, 696128640, 719332928, 899166160, 1078999392, 1348749240, 1438665856, 1798332320, 2157998784, 2697498480, 3596664640, 4315997568, 5394996960, 7193329280, 10789993920, 21579987840]

約数ペア:

[(1, 21579987840), (2, 10789993920), (3, 7193329280), (4, 5394996960), (5, 4315997568), (6, 3596664640), (8, 2697498480), (10, 2157998784), (12, 1798332320), (15, 1438665856), (16, 1348749240), (20, 1078999392), (24, 899166160), (30, 719332928), (31, 696128640), (32, 674374620), (40, 539499696), (48, 449583080), (60, 359666464), (62, 348064320), (64, 337187310), (80, 269749848), (93, 232042880), (96, 224791540), (120, 179833232), (124, 174032160), (128, 168593655), (155, 139225728), (160, 134874924), (186, 116021440), (192, 112395770), (240, 89916616), (248, 87016080), (307, 70293120), (310, 69612864), (320, 67437462), (372, 58010720), (384, 56197885), (465, 46408576), (480, 44958308), (496, 43508040), (614, 35146560), (620, 34806432), (640, 33718731), (744, 29005360), (921, 23431040), (930, 23204288), (960, 22479154), (992, 21754020), (1181, 18272640), (1228, 17573280), (1240, 17403216), (1488, 14502680), (1535, 14058624), (1842, 11715520), (1860, 11602144), (1920, 11239577), (1984, 10877010), (2362, 9136320), (2456, 8786640), (2480, 8701608), (2976, 7251340), (3070, 7029312), (3543, 6090880), (3684, 5857760), (3720, 5801072), (3968, 5438505), (4605, 4686208), (4724, 4568160), (4912, 4393320), (4960, 4350804), (5905, 3654528), (5952, 3625670), (6140, 3514656), (7086, 3045440), (7368, 2928880), (7440, 2900536), (9210, 2343104), (9448, 2284080), (9517, 2267520), (9824, 2196660), (9920, 2175402), (11810, 1827264), (11904, 1812835), (12280, 1757328), (14172, 1522720), (14736, 1464440), (14880, 1450268), (17715, 1218176), (18420, 1171552), (18896, 1142040), (19034, 1133760), (19648, 1098330), (19840, 1087701), (23620, 913632), (24560, 878664), (28344, 761360), (28551, 755840), (29472, 732220), (29760, 725134), (35430, 609088), (36611, 589440), (36840, 585776), (37792, 571020), (38068, 566880), (39296, 549165), (47240, 456816), (47585, 453504), (49120, 439332), (56688, 380680), (57102, 377920), (58944, 366110), (59520, 362567), (70860, 304544), (73222, 294720), (73680, 292888), (75584, 285510), (76136, 283440), (94480, 228408), (95170, 226752), (98240, 219666), (109833, 196480), (113376, 190340), (114204, 188960), (117888, 183055), (141720, 152272), (142755, 151168), (146444, 147360)]