21796320

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{499}}^1$

素因数の和:537

約数の個数: 192

約数和(自身を含む): 84672000

約数和(自身を除く): 62875680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 26, 28, 30, 32, 35, 39, 40, 42, 48, 52, 56, 60, 65, 70, 78, 80, 84, 91, 96, 104, 105, 112, 120, 130, 140, 156, 160, 168, 182, 195, 208, 210, 224, 240, 260, 273, 280, 312, 336, 364, 390, 416, 420, 455, 480, 499, 520, 546, 560, 624, 672, 728, 780, 840, 910, 998, 1040, 1092, 1120, 1248, 1365, 1456, 1497, 1560, 1680, 1820, 1996, 2080, 2184, 2495, 2730, 2912, 2994, 3120, 3360, 3493, 3640, 3992, 4368, 4990, 5460, 5988, 6240, 6487, 6986, 7280, 7485, 7984, 8736, 9980, 10479, 10920, 11976, 12974, 13972, 14560, 14970, 15968, 17465, 19461, 19960, 20958, 21840, 23952, 25948, 27944, 29940, 32435, 34930, 38922, 39920, 41916, 43680, 45409, 47904, 51896, 52395, 55888, 59880, 64870, 69860, 77844, 79840, 83832, 90818, 97305, 103792, 104790, 111776, 119760, 129740, 136227, 139720, 155688, 167664, 181636, 194610, 207584, 209580, 227045, 239520, 259480, 272454, 279440, 311376, 335328, 363272, 389220, 419160, 454090, 518960, 544908, 558880, 622752, 681135, 726544, 778440, 838320, 908180, 1037920, 1089816, 1362270, 1453088, 1556880, 1676640, 1816360, 2179632, 2724540, 3113760, 3632720, 4359264, 5449080, 7265440, 10898160, 21796320]

約数ペア:

[(1, 21796320), (2, 10898160), (3, 7265440), (4, 5449080), (5, 4359264), (6, 3632720), (7, 3113760), (8, 2724540), (10, 2179632), (12, 1816360), (13, 1676640), (14, 1556880), (15, 1453088), (16, 1362270), (20, 1089816), (21, 1037920), (24, 908180), (26, 838320), (28, 778440), (30, 726544), (32, 681135), (35, 622752), (39, 558880), (40, 544908), (42, 518960), (48, 454090), (52, 419160), (56, 389220), (60, 363272), (65, 335328), (70, 311376), (78, 279440), (80, 272454), (84, 259480), (91, 239520), (96, 227045), (104, 209580), (105, 207584), (112, 194610), (120, 181636), (130, 167664), (140, 155688), (156, 139720), (160, 136227), (168, 129740), (182, 119760), (195, 111776), (208, 104790), (210, 103792), (224, 97305), (240, 90818), (260, 83832), (273, 79840), (280, 77844), (312, 69860), (336, 64870), (364, 59880), (390, 55888), (416, 52395), (420, 51896), (455, 47904), (480, 45409), (499, 43680), (520, 41916), (546, 39920), (560, 38922), (624, 34930), (672, 32435), (728, 29940), (780, 27944), (840, 25948), (910, 23952), (998, 21840), (1040, 20958), (1092, 19960), (1120, 19461), (1248, 17465), (1365, 15968), (1456, 14970), (1497, 14560), (1560, 13972), (1680, 12974), (1820, 11976), (1996, 10920), (2080, 10479), (2184, 9980), (2495, 8736), (2730, 7984), (2912, 7485), (2994, 7280), (3120, 6986), (3360, 6487), (3493, 6240), (3640, 5988), (3992, 5460), (4368, 4990)]