80339870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{1511}}^1$

素因数の和:1940

約数の個数: 32

約数和(自身を含む): 156219840

約数和(自身を除く): 75879970

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 409, 818, 1511, 2045, 3022, 4090, 5317, 7555, 10634, 15110, 19643, 26585, 39286, 53170, 98215, 196430, 617999, 1235998, 3089995, 6179990, 8033987, 16067974, 40169935, 80339870]

約数ペア:

[(1, 80339870), (2, 40169935), (5, 16067974), (10, 8033987), (13, 6179990), (26, 3089995), (65, 1235998), (130, 617999), (409, 196430), (818, 98215), (1511, 53170), (2045, 39286), (3022, 26585), (4090, 19643), (5317, 15110), (7555, 10634)]