305465240

素因数分解:

$2^3\times 5^1\times {\mathrm{1571}}^1\times {\mathrm{4861}}^1$

素因数の和:6443

約数の個数: 32

約数和(自身を含む): 687875760

約数和(自身を除く): 382410520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1571, 3142, 4861, 6284, 7855, 9722, 12568, 15710, 19444, 24305, 31420, 38888, 48610, 62840, 97220, 194440, 7636631, 15273262, 30546524, 38183155, 61093048, 76366310, 152732620, 305465240]

約数ペア:

[(1, 305465240), (2, 152732620), (4, 76366310), (5, 61093048), (8, 38183155), (10, 30546524), (20, 15273262), (40, 7636631), (1571, 194440), (3142, 97220), (4861, 62840), (6284, 48610), (7855, 38888), (9722, 31420), (12568, 24305), (15710, 19444)]