140438840

素因数分解:

$2^3\times 5^1\times {\mathrm{691}}^1\times {\mathrm{5081}}^1$

素因数の和:5783

約数の個数: 32

約数和(自身を含む): 316506960

約数和(自身を除く): 176068120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 691, 1382, 2764, 3455, 5081, 5528, 6910, 10162, 13820, 20324, 25405, 27640, 40648, 50810, 101620, 203240, 3510971, 7021942, 14043884, 17554855, 28087768, 35109710, 70219420, 140438840]

約数ペア:

[(1, 140438840), (2, 70219420), (4, 35109710), (5, 28087768), (8, 17554855), (10, 14043884), (20, 7021942), (40, 3510971), (691, 203240), (1382, 101620), (2764, 50810), (3455, 40648), (5081, 27640), (5528, 25405), (6910, 20324), (10162, 13820)]