20453576

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{941}}^1$

素因数の和:990

約数の個数: 64

約数和(自身を含む): 47476800

約数和(自身を除く): 27023224

約数列:

[1, 2, 4, 8, 11, 13, 19, 22, 26, 38, 44, 52, 76, 88, 104, 143, 152, 209, 247, 286, 418, 494, 572, 836, 941, 988, 1144, 1672, 1882, 1976, 2717, 3764, 5434, 7528, 10351, 10868, 12233, 17879, 20702, 21736, 24466, 35758, 41404, 48932, 71516, 82808, 97864, 134563, 143032, 196669, 232427, 269126, 393338, 464854, 538252, 786676, 929708, 1076504, 1573352, 1859416, 2556697, 5113394, 10226788, 20453576]

約数ペア:

[(1, 20453576), (2, 10226788), (4, 5113394), (8, 2556697), (11, 1859416), (13, 1573352), (19, 1076504), (22, 929708), (26, 786676), (38, 538252), (44, 464854), (52, 393338), (76, 269126), (88, 232427), (104, 196669), (143, 143032), (152, 134563), (209, 97864), (247, 82808), (286, 71516), (418, 48932), (494, 41404), (572, 35758), (836, 24466), (941, 21736), (988, 20702), (1144, 17879), (1672, 12233), (1882, 10868), (1976, 10351), (2717, 7528), (3764, 5434)]