19535560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1531}}^1$

素因数の和:1582

約数の個数: 64

約数和(自身を含む): 49636800

約数和(自身を除く): 30101240

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 29, 40, 44, 55, 58, 88, 110, 116, 145, 220, 232, 290, 319, 440, 580, 638, 1160, 1276, 1531, 1595, 2552, 3062, 3190, 6124, 6380, 7655, 12248, 12760, 15310, 16841, 30620, 33682, 44399, 61240, 67364, 84205, 88798, 134728, 168410, 177596, 221995, 336820, 355192, 443990, 488389, 673640, 887980, 976778, 1775960, 1953556, 2441945, 3907112, 4883890, 9767780, 19535560]

約数ペア:

[(1, 19535560), (2, 9767780), (4, 4883890), (5, 3907112), (8, 2441945), (10, 1953556), (11, 1775960), (20, 976778), (22, 887980), (29, 673640), (40, 488389), (44, 443990), (55, 355192), (58, 336820), (88, 221995), (110, 177596), (116, 168410), (145, 134728), (220, 88798), (232, 84205), (290, 67364), (319, 61240), (440, 44399), (580, 33682), (638, 30620), (1160, 16841), (1276, 15310), (1531, 12760), (1595, 12248), (2552, 7655), (3062, 6380), (3190, 6124)]