66399320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127691}}^1$

素因数の和:127715

約数の個数: 32

約数和(自身を含む): 160891920

約数和(自身を除く): 94492600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 127691, 255382, 510764, 638455, 1021528, 1276910, 1659983, 2553820, 3319966, 5107640, 6639932, 8299915, 13279864, 16599830, 33199660, 66399320]

約数ペア:

[(1, 66399320), (2, 33199660), (4, 16599830), (5, 13279864), (8, 8299915), (10, 6639932), (13, 5107640), (20, 3319966), (26, 2553820), (40, 1659983), (52, 1276910), (65, 1021528), (104, 638455), (130, 510764), (260, 255382), (520, 127691)]