64633280

素因数分解:

$2^6\times 5^1\times {\mathrm{201979}}^1$

素因数の和:201996

約数の個数: 28

約数和(自身を含む): 153908760

約数和(自身を除く): 89275480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 201979, 403958, 807916, 1009895, 1615832, 2019790, 3231664, 4039580, 6463328, 8079160, 12926656, 16158320, 32316640, 64633280]

約数ペア:

[(1, 64633280), (2, 32316640), (4, 16158320), (5, 12926656), (8, 8079160), (10, 6463328), (16, 4039580), (20, 3231664), (32, 2019790), (40, 1615832), (64, 1009895), (80, 807916), (160, 403958), (320, 201979)]