7943980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{36109}}^1$

素因数の和:36129

約数の個数: 24

約数和(自身を含む): 18199440

約数和(自身を除く): 10255460

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 36109, 72218, 144436, 180545, 361090, 397199, 722180, 794398, 1588796, 1985995, 3971990, 7943980]

約数ペア:

[(1, 7943980), (2, 3971990), (4, 1985995), (5, 1588796), (10, 794398), (11, 722180), (20, 397199), (22, 361090), (44, 180545), (55, 144436), (110, 72218), (220, 36109)]