38391980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{1601}}^1$

素因数の和:1730

約数の個数: 48

約数和(自身を含む): 88814880

約数和(自身を除く): 50422900

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 109, 110, 218, 220, 436, 545, 1090, 1199, 1601, 2180, 2398, 3202, 4796, 5995, 6404, 8005, 11990, 16010, 17611, 23980, 32020, 35222, 70444, 88055, 174509, 176110, 349018, 352220, 698036, 872545, 1745090, 1919599, 3490180, 3839198, 7678396, 9597995, 19195990, 38391980]

約数ペア:

[(1, 38391980), (2, 19195990), (4, 9597995), (5, 7678396), (10, 3839198), (11, 3490180), (20, 1919599), (22, 1745090), (44, 872545), (55, 698036), (109, 352220), (110, 349018), (218, 176110), (220, 174509), (436, 88055), (545, 70444), (1090, 35222), (1199, 32020), (1601, 23980), (2180, 17611), (2398, 16010), (3202, 11990), (4796, 8005), (5995, 6404)]