65768720

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{11579}}^1$

素因数の和:11663

約数の個数: 40

約数和(自身を含む): 155079360

約数和(自身を除く): 89310640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 11579, 23158, 46316, 57895, 92632, 115790, 185264, 231580, 463160, 822109, 926320, 1644218, 3288436, 4110545, 6576872, 8221090, 13153744, 16442180, 32884360, 65768720]

約数ペア:

[(1, 65768720), (2, 32884360), (4, 16442180), (5, 13153744), (8, 8221090), (10, 6576872), (16, 4110545), (20, 3288436), (40, 1644218), (71, 926320), (80, 822109), (142, 463160), (284, 231580), (355, 185264), (568, 115790), (710, 92632), (1136, 57895), (1420, 46316), (2840, 23158), (5680, 11579)]