1293399640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2487307}}^1$

素因数の和:2487331

約数の個数: 32

約数和(自身を含む): 3134008080

約数和(自身を除く): 1840608440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 2487307, 4974614, 9949228, 12436535, 19898456, 24873070, 32334991, 49746140, 64669982, 99492280, 129339964, 161674955, 258679928, 323349910, 646699820, 1293399640]

約数ペア:

[(1, 1293399640), (2, 646699820), (4, 323349910), (5, 258679928), (8, 161674955), (10, 129339964), (13, 99492280), (20, 64669982), (26, 49746140), (40, 32334991), (52, 24873070), (65, 19898456), (104, 12436535), (130, 9949228), (260, 4974614), (520, 2487307)]