645955816

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{30713}}^1$

素因数の和:30969

約数の個数: 32

約数和(自身を含む): 1326844800

約数和(自身を除く): 680888984

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 239, 478, 956, 1912, 2629, 5258, 10516, 21032, 30713, 61426, 122852, 245704, 337843, 675686, 1351372, 2702744, 7340407, 14680814, 29361628, 58723256, 80744477, 161488954, 322977908, 645955816]

約数ペア:

[(1, 645955816), (2, 322977908), (4, 161488954), (8, 80744477), (11, 58723256), (22, 29361628), (44, 14680814), (88, 7340407), (239, 2702744), (478, 1351372), (956, 675686), (1912, 337843), (2629, 245704), (5258, 122852), (10516, 61426), (21032, 30713)]