28915120

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{27803}}^1$

素因数の和:27829

約数の個数: 40

約数和(自身を含む): 72401616

約数和(自身を除く): 43486496

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 27803, 55606, 111212, 139015, 222424, 278030, 361439, 444848, 556060, 722878, 1112120, 1445756, 1807195, 2224240, 2891512, 3614390, 5783024, 7228780, 14457560, 28915120]

約数ペア:

[(1, 28915120), (2, 14457560), (4, 7228780), (5, 5783024), (8, 3614390), (10, 2891512), (13, 2224240), (16, 1807195), (20, 1445756), (26, 1112120), (40, 722878), (52, 556060), (65, 444848), (80, 361439), (104, 278030), (130, 222424), (208, 139015), (260, 111212), (520, 55606), (1040, 27803)]