20551132

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{239}}^1$

素因数の和:370

約数の個数: 48

約数和(自身を含む): 42900480

約数和(自身を除く): 22349348

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 83, 148, 166, 239, 259, 332, 478, 518, 581, 956, 1036, 1162, 1673, 2324, 3071, 3346, 6142, 6692, 8843, 12284, 17686, 19837, 21497, 35372, 39674, 42994, 61901, 79348, 85988, 123802, 138859, 247604, 277718, 555436, 733969, 1467938, 2935876, 5137783, 10275566, 20551132]

約数ペア:

[(1, 20551132), (2, 10275566), (4, 5137783), (7, 2935876), (14, 1467938), (28, 733969), (37, 555436), (74, 277718), (83, 247604), (148, 138859), (166, 123802), (239, 85988), (259, 79348), (332, 61901), (478, 42994), (518, 39674), (581, 35372), (956, 21497), (1036, 19837), (1162, 17686), (1673, 12284), (2324, 8843), (3071, 6692), (3346, 6142)]