64581280

素因数分解:

$2^5\times 5^1\times {\mathrm{37}}^1\times {\mathrm{10909}}^1$

素因数の和:10961

約数の個数: 48

約数和(自身を含む): 156711240

約数和(自身を除く): 92129960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 74, 80, 148, 160, 185, 296, 370, 592, 740, 1184, 1480, 2960, 5920, 10909, 21818, 43636, 54545, 87272, 109090, 174544, 218180, 349088, 403633, 436360, 807266, 872720, 1614532, 1745440, 2018165, 3229064, 4036330, 6458128, 8072660, 12916256, 16145320, 32290640, 64581280]

約数ペア:

[(1, 64581280), (2, 32290640), (4, 16145320), (5, 12916256), (8, 8072660), (10, 6458128), (16, 4036330), (20, 3229064), (32, 2018165), (37, 1745440), (40, 1614532), (74, 872720), (80, 807266), (148, 436360), (160, 403633), (185, 349088), (296, 218180), (370, 174544), (592, 109090), (740, 87272), (1184, 54545), (1480, 43636), (2960, 21818), (5920, 10909)]