20997536640

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{359}}^1\times {\mathrm{743}}^1$

素因数の和:1165

約数の個数: 256

約数和(自身を含む): 68845593600

約数和(自身を除く): 47848056960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 41, 48, 60, 64, 80, 82, 96, 120, 123, 128, 160, 164, 192, 205, 240, 246, 320, 328, 359, 384, 410, 480, 492, 615, 640, 656, 718, 743, 820, 960, 984, 1077, 1230, 1312, 1436, 1486, 1640, 1795, 1920, 1968, 2154, 2229, 2460, 2624, 2872, 2972, 3280, 3590, 3715, 3936, 4308, 4458, 4920, 5248, 5385, 5744, 5944, 6560, 7180, 7430, 7872, 8616, 8916, 9840, 10770, 11145, 11488, 11888, 13120, 14360, 14719, 14860, 15744, 17232, 17832, 19680, 21540, 22290, 22976, 23776, 26240, 28720, 29438, 29720, 30463, 34464, 35664, 39360, 43080, 44157, 44580, 45952, 47552, 57440, 58876, 59440, 60926, 68928, 71328, 73595, 78720, 86160, 88314, 89160, 91389, 95104, 114880, 117752, 118880, 121852, 137856, 142656, 147190, 152315, 172320, 176628, 178320, 182778, 220785, 229760, 235504, 237760, 243704, 266737, 285312, 294380, 304630, 344640, 353256, 356640, 365556, 441570, 456945, 471008, 475520, 487408, 533474, 588760, 609260, 689280, 706512, 713280, 731112, 800211, 883140, 913890, 942016, 974816, 1066948, 1177520, 1218520, 1333685, 1413024, 1426560, 1462224, 1600422, 1766280, 1827780, 1884032, 1949632, 2133896, 2355040, 2437040, 2667370, 2826048, 2924448, 3200844, 3532560, 3655560, 3899264, 4001055, 4267792, 4710080, 4874080, 5334740, 5652096, 5848896, 6401688, 7065120, 7311120, 8002110, 8535584, 9420160, 9748160, 10669480, 10936217, 11697792, 12803376, 14130240, 14622240, 16004220, 17071168, 19496320, 21338960, 21872434, 25606752, 28260480, 29244480, 32008440, 32808651, 34142336, 42677920, 43744868, 51213504, 54681085, 58488960, 64016880, 65617302, 85355840, 87489736, 102427008, 109362170, 128033760, 131234604, 164043255, 170711680, 174979472, 218724340, 256067520, 262469208, 328086510, 349958944, 437448680, 512135040, 524938416, 656173020, 699917888, 874897360, 1049876832, 1312346040, 1399835776, 1749794720, 2099753664, 2624692080, 3499589440, 4199507328, 5249384160, 6999178880, 10498768320, 20997536640]

約数ペア:

[(1, 20997536640), (2, 10498768320), (3, 6999178880), (4, 5249384160), (5, 4199507328), (6, 3499589440), (8, 2624692080), (10, 2099753664), (12, 1749794720), (15, 1399835776), (16, 1312346040), (20, 1049876832), (24, 874897360), (30, 699917888), (32, 656173020), (40, 524938416), (41, 512135040), (48, 437448680), (60, 349958944), (64, 328086510), (80, 262469208), (82, 256067520), (96, 218724340), (120, 174979472), (123, 170711680), (128, 164043255), (160, 131234604), (164, 128033760), (192, 109362170), (205, 102427008), (240, 87489736), (246, 85355840), (320, 65617302), (328, 64016880), (359, 58488960), (384, 54681085), (410, 51213504), (480, 43744868), (492, 42677920), (615, 34142336), (640, 32808651), (656, 32008440), (718, 29244480), (743, 28260480), (820, 25606752), (960, 21872434), (984, 21338960), (1077, 19496320), (1230, 17071168), (1312, 16004220), (1436, 14622240), (1486, 14130240), (1640, 12803376), (1795, 11697792), (1920, 10936217), (1968, 10669480), (2154, 9748160), (2229, 9420160), (2460, 8535584), (2624, 8002110), (2872, 7311120), (2972, 7065120), (3280, 6401688), (3590, 5848896), (3715, 5652096), (3936, 5334740), (4308, 4874080), (4458, 4710080), (4920, 4267792), (5248, 4001055), (5385, 3899264), (5744, 3655560), (5944, 3532560), (6560, 3200844), (7180, 2924448), (7430, 2826048), (7872, 2667370), (8616, 2437040), (8916, 2355040), (9840, 2133896), (10770, 1949632), (11145, 1884032), (11488, 1827780), (11888, 1766280), (13120, 1600422), (14360, 1462224), (14719, 1426560), (14860, 1413024), (15744, 1333685), (17232, 1218520), (17832, 1177520), (19680, 1066948), (21540, 974816), (22290, 942016), (22976, 913890), (23776, 883140), (26240, 800211), (28720, 731112), (29438, 713280), (29720, 706512), (30463, 689280), (34464, 609260), (35664, 588760), (39360, 533474), (43080, 487408), (44157, 475520), (44580, 471008), (45952, 456945), (47552, 441570), (57440, 365556), (58876, 356640), (59440, 353256), (60926, 344640), (68928, 304630), (71328, 294380), (73595, 285312), (78720, 266737), (86160, 243704), (88314, 237760), (89160, 235504), (91389, 229760), (95104, 220785), (114880, 182778), (117752, 178320), (118880, 176628), (121852, 172320), (137856, 152315), (142656, 147190)]