64981930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{1597}}^1$

素因数の和:1930

約数の個数: 32

約数和(自身を含む): 126446544

約数和(自身を除く): 61464614

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 313, 626, 1565, 1597, 3130, 3194, 4069, 7985, 8138, 15970, 20345, 20761, 40690, 41522, 103805, 207610, 499861, 999722, 2499305, 4998610, 6498193, 12996386, 32490965, 64981930]

約数ペア:

[(1, 64981930), (2, 32490965), (5, 12996386), (10, 6498193), (13, 4998610), (26, 2499305), (65, 999722), (130, 499861), (313, 207610), (626, 103805), (1565, 41522), (1597, 40690), (3130, 20761), (3194, 20345), (4069, 15970), (7985, 8138)]