64972960

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31237}}^1$

素因数の和:31265

約数の個数: 48

約数和(自身を含む): 165311496

約数和(自身を除く): 100338536

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 31237, 62474, 124948, 156185, 249896, 312370, 406081, 499792, 624740, 812162, 999584, 1249480, 1624324, 2030405, 2498960, 3248648, 4060810, 4997920, 6497296, 8121620, 12994592, 16243240, 32486480, 64972960]

約数ペア:

[(1, 64972960), (2, 32486480), (4, 16243240), (5, 12994592), (8, 8121620), (10, 6497296), (13, 4997920), (16, 4060810), (20, 3248648), (26, 2498960), (32, 2030405), (40, 1624324), (52, 1249480), (65, 999584), (80, 812162), (104, 624740), (130, 499792), (160, 406081), (208, 312370), (260, 249896), (416, 156185), (520, 124948), (1040, 62474), (2080, 31237)]