31181930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{1831}}^1$

素因数の和:1982

約数の個数: 32

約数和(自身を含む): 60939648

約数和(自身を除く): 29757718

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 131, 262, 655, 1310, 1703, 1831, 3406, 3662, 8515, 9155, 17030, 18310, 23803, 47606, 119015, 238030, 239861, 479722, 1199305, 2398610, 3118193, 6236386, 15590965, 31181930]

約数ペア:

[(1, 31181930), (2, 15590965), (5, 6236386), (10, 3118193), (13, 2398610), (26, 1199305), (65, 479722), (130, 239861), (131, 238030), (262, 119015), (655, 47606), (1310, 23803), (1703, 18310), (1831, 17030), (3406, 9155), (3662, 8515)]