309255880

素因数分解:

$2^3\times 5^1\times {\mathrm{349}}^1\times {\mathrm{22153}}^1$

素因数の和:22513

約数の個数: 32

約数和(自身を含む): 697851000

約数和(自身を除く): 388595120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 349, 698, 1396, 1745, 2792, 3490, 6980, 13960, 22153, 44306, 88612, 110765, 177224, 221530, 443060, 886120, 7731397, 15462794, 30925588, 38656985, 61851176, 77313970, 154627940, 309255880]

約数ペア:

[(1, 309255880), (2, 154627940), (4, 77313970), (5, 61851176), (8, 38656985), (10, 30925588), (20, 15462794), (40, 7731397), (349, 886120), (698, 443060), (1396, 221530), (1745, 177224), (2792, 110765), (3490, 88612), (6980, 44306), (13960, 22153)]