728489840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{700471}}^1$

素因数の和:700497

約数の個数: 40

約数和(自身を含む): 1824029088

約数和(自身を除く): 1095539248

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 700471, 1400942, 2801884, 3502355, 5603768, 7004710, 9106123, 11207536, 14009420, 18212246, 28018840, 36424492, 45530615, 56037680, 72848984, 91061230, 145697968, 182122460, 364244920, 728489840]

約数ペア:

[(1, 728489840), (2, 364244920), (4, 182122460), (5, 145697968), (8, 91061230), (10, 72848984), (13, 56037680), (16, 45530615), (20, 36424492), (26, 28018840), (40, 18212246), (52, 14009420), (65, 11207536), (80, 9106123), (104, 7004710), (130, 5603768), (208, 3502355), (260, 2801884), (520, 1400942), (1040, 700471)]