31539.000000

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{661}}^1$

素因数の和:691

約数の個数: 40

約数和(自身を含む): 2216376

約数和(自身を除く): 1317416

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 661, 680, 1322, 1360, 2644, 3305, 5288, 6610, 10576, 11237, 13220, 22474, 26440, 44948, 52880, 56185, 89896, 112370, 179792, 224740, 449480, 898960]

約数ペア:

[(1, 898960), (2, 449480), (4, 224740), (5, 179792), (8, 112370), (10, 89896), (16, 56185), (17, 52880), (20, 44948), (34, 26440), (40, 22474), (68, 13220), (80, 11237), (85, 10576), (136, 6610), (170, 5288), (272, 3305), (340, 2644), (661, 1360), (680, 1322)]