20178755516

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{673}}^1\times {\mathrm{1637}}^1$

素因数の和:2574

約数の個数: 48

約数和(自身を含む): 37403926560

約数和(自身を除く): 17225171044

約数列:

[1, 2, 4, 19, 38, 76, 241, 482, 673, 964, 1346, 1637, 2692, 3274, 4579, 6548, 9158, 12787, 18316, 25574, 31103, 51148, 62206, 124412, 162193, 324386, 394517, 648772, 789034, 1101701, 1578068, 2203402, 3081667, 4406804, 6163334, 7495823, 12326668, 14991646, 20932319, 29983292, 41864638, 83729276, 265509941, 531019882, 1062039764, 5044688879, 10089377758, 20178755516]

約数ペア:

[(1, 20178755516), (2, 10089377758), (4, 5044688879), (19, 1062039764), (38, 531019882), (76, 265509941), (241, 83729276), (482, 41864638), (673, 29983292), (964, 20932319), (1346, 14991646), (1637, 12326668), (2692, 7495823), (3274, 6163334), (4579, 4406804), (6548, 3081667), (9158, 2203402), (12787, 1578068), (18316, 1101701), (25574, 789034), (31103, 648772), (51148, 394517), (62206, 324386), (124412, 162193)]