51437490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131891}}^1$

素因数の和:131914

約数の個数: 32

約数和(自身を含む): 132947136

約数和(自身を除く): 81509646

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 131891, 263782, 395673, 659455, 791346, 1318910, 1714583, 1978365, 3429166, 3956730, 5143749, 8572915, 10287498, 17145830, 25718745, 51437490]

約数ペア:

[(1, 51437490), (2, 25718745), (3, 17145830), (5, 10287498), (6, 8572915), (10, 5143749), (13, 3956730), (15, 3429166), (26, 1978365), (30, 1714583), (39, 1318910), (65, 791346), (78, 659455), (130, 395673), (195, 263782), (390, 131891)]