9901660

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{367}}^1$

素因数の和:466

約数の個数: 48

約数和(自身を含む): 22256640

約数和(自身を除く): 12354980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 71, 76, 95, 142, 190, 284, 355, 367, 380, 710, 734, 1349, 1420, 1468, 1835, 2698, 3670, 5396, 6745, 6973, 7340, 13490, 13946, 26057, 26980, 27892, 34865, 52114, 69730, 104228, 130285, 139460, 260570, 495083, 521140, 990166, 1980332, 2475415, 4950830, 9901660]

約数ペア:

[(1, 9901660), (2, 4950830), (4, 2475415), (5, 1980332), (10, 990166), (19, 521140), (20, 495083), (38, 260570), (71, 139460), (76, 130285), (95, 104228), (142, 69730), (190, 52114), (284, 34865), (355, 27892), (367, 26980), (380, 26057), (710, 13946), (734, 13490), (1349, 7340), (1420, 6973), (1468, 6745), (1835, 5396), (2698, 3670)]