20011776

素因数分解:

$2^8\times 3^1\times {\mathrm{71}}^1\times {\mathrm{367}}^1$

素因数の和:457

約数の個数: 72

約数和(自身を含む): 54157824

約数和(自身を除く): 34146048

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 71, 96, 128, 142, 192, 213, 256, 284, 367, 384, 426, 568, 734, 768, 852, 1101, 1136, 1468, 1704, 2202, 2272, 2936, 3408, 4404, 4544, 5872, 6816, 8808, 9088, 11744, 13632, 17616, 18176, 23488, 26057, 27264, 35232, 46976, 52114, 54528, 70464, 78171, 93952, 104228, 140928, 156342, 208456, 281856, 312684, 416912, 625368, 833824, 1250736, 1667648, 2501472, 3335296, 5002944, 6670592, 10005888, 20011776]

約数ペア:

[(1, 20011776), (2, 10005888), (3, 6670592), (4, 5002944), (6, 3335296), (8, 2501472), (12, 1667648), (16, 1250736), (24, 833824), (32, 625368), (48, 416912), (64, 312684), (71, 281856), (96, 208456), (128, 156342), (142, 140928), (192, 104228), (213, 93952), (256, 78171), (284, 70464), (367, 54528), (384, 52114), (426, 46976), (568, 35232), (734, 27264), (768, 26057), (852, 23488), (1101, 18176), (1136, 17616), (1468, 13632), (1704, 11744), (2202, 9088), (2272, 8808), (2936, 6816), (3408, 5872), (4404, 4544)]