20199232820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{77689357}}^1$

素因数の和:77689379

約数の個数: 24

約数和(自身を含む): 45681342504

約数和(自身を除く): 25482109684

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 77689357, 155378714, 310757428, 388446785, 776893570, 1009961641, 1553787140, 2019923282, 4039846564, 5049808205, 10099616410, 20199232820]

約数ペア:

[(1, 20199232820), (2, 10099616410), (4, 5049808205), (5, 4039846564), (10, 2019923282), (13, 1553787140), (20, 1009961641), (26, 776893570), (52, 388446785), (65, 310757428), (130, 155378714), (260, 77689357)]