258779820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{331769}}^1$

素因数の和:331794

約数の個数: 48

約数和(自身を含む): 780323040

約数和(自身を除く): 521543220

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 331769, 663538, 995307, 1327076, 1658845, 1990614, 3317690, 3981228, 4312997, 4976535, 6635380, 8625994, 9953070, 12938991, 17251988, 19906140, 21564985, 25877982, 43129970, 51755964, 64694955, 86259940, 129389910, 258779820]

約数ペア:

[(1, 258779820), (2, 129389910), (3, 86259940), (4, 64694955), (5, 51755964), (6, 43129970), (10, 25877982), (12, 21564985), (13, 19906140), (15, 17251988), (20, 12938991), (26, 9953070), (30, 8625994), (39, 6635380), (52, 4976535), (60, 4312997), (65, 3981228), (78, 3317690), (130, 1990614), (156, 1658845), (195, 1327076), (260, 995307), (390, 663538), (780, 331769)]