458480

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{521}}^1$

素因数の和:545

約数の個数: 40

約数和(自身を含む): 1165104

約数和(自身を除く): 706624

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 521, 880, 1042, 2084, 2605, 4168, 5210, 5731, 8336, 10420, 11462, 20840, 22924, 28655, 41680, 45848, 57310, 91696, 114620, 229240, 458480]

約数ペア:

[(1, 458480), (2, 229240), (4, 114620), (5, 91696), (8, 57310), (10, 45848), (11, 41680), (16, 28655), (20, 22924), (22, 20840), (40, 11462), (44, 10420), (55, 8336), (80, 5731), (88, 5210), (110, 4168), (176, 2605), (220, 2084), (440, 1042), (521, 880)]