90147640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{971}}^1$

素因数の和:1204

約数の個数: 64

約数和(自身を含む): 222549120

約数和(自身を除く): 132401480

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 211, 220, 422, 440, 844, 971, 1055, 1688, 1942, 2110, 2321, 3884, 4220, 4642, 4855, 7768, 8440, 9284, 9710, 10681, 11605, 18568, 19420, 21362, 23210, 38840, 42724, 46420, 53405, 85448, 92840, 106810, 204881, 213620, 409762, 427240, 819524, 1024405, 1639048, 2048810, 2253691, 4097620, 4507382, 8195240, 9014764, 11268455, 18029528, 22536910, 45073820, 90147640]

約数ペア:

[(1, 90147640), (2, 45073820), (4, 22536910), (5, 18029528), (8, 11268455), (10, 9014764), (11, 8195240), (20, 4507382), (22, 4097620), (40, 2253691), (44, 2048810), (55, 1639048), (88, 1024405), (110, 819524), (211, 427240), (220, 409762), (422, 213620), (440, 204881), (844, 106810), (971, 92840), (1055, 85448), (1688, 53405), (1942, 46420), (2110, 42724), (2321, 38840), (3884, 23210), (4220, 21362), (4642, 19420), (4855, 18568), (7768, 11605), (8440, 10681), (9284, 9710)]