128713640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{292531}}^1$

素因数の和:292553

約数の個数: 32

約数和(自身を含む): 315934560

約数和(自身を除く): 187220920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 292531, 585062, 1170124, 1462655, 2340248, 2925310, 3217841, 5850620, 6435682, 11701240, 12871364, 16089205, 25742728, 32178410, 64356820, 128713640]

約数ペア:

[(1, 128713640), (2, 64356820), (4, 32178410), (5, 25742728), (8, 16089205), (10, 12871364), (11, 11701240), (20, 6435682), (22, 5850620), (40, 3217841), (44, 2925310), (55, 2340248), (88, 1462655), (110, 1170124), (220, 585062), (440, 292531)]