397702916

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{42727}}^1$

素因数の和:42923

約数の個数: 24

約数和(自身を含む): 753721920

約数和(自身を除く): 356019004

約数列:

[1, 2, 4, 13, 26, 52, 179, 358, 716, 2327, 4654, 9308, 42727, 85454, 170908, 555451, 1110902, 2221804, 7648133, 15296266, 30592532, 99425729, 198851458, 397702916]

約数ペア:

[(1, 397702916), (2, 198851458), (4, 99425729), (13, 30592532), (26, 15296266), (52, 7648133), (179, 2221804), (358, 1110902), (716, 555451), (2327, 170908), (4654, 85454), (9308, 42727)]