145640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{331}}^1$

素因数の和:353

約数の個数: 32

約数和(自身を含む): 358560

約数和(自身を除く): 212920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 331, 440, 662, 1324, 1655, 2648, 3310, 3641, 6620, 7282, 13240, 14564, 18205, 29128, 36410, 72820, 145640]

約数ペア:

[(1, 145640), (2, 72820), (4, 36410), (5, 29128), (8, 18205), (10, 14564), (11, 13240), (20, 7282), (22, 6620), (40, 3641), (44, 3310), (55, 2648), (88, 1655), (110, 1324), (220, 662), (331, 440)]