278096920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{277}}^1\times {\mathrm{1321}}^1$

素因数の和:1628

約数の個数: 64

約数和(自身を含む): 661528800

約数和(自身を除く): 383431880

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 277, 380, 554, 760, 1108, 1321, 1385, 2216, 2642, 2770, 5263, 5284, 5540, 6605, 10526, 10568, 11080, 13210, 21052, 25099, 26315, 26420, 42104, 50198, 52630, 52840, 100396, 105260, 125495, 200792, 210520, 250990, 365917, 501980, 731834, 1003960, 1463668, 1829585, 2927336, 3659170, 6952423, 7318340, 13904846, 14636680, 27809692, 34762115, 55619384, 69524230, 139048460, 278096920]

約数ペア:

[(1, 278096920), (2, 139048460), (4, 69524230), (5, 55619384), (8, 34762115), (10, 27809692), (19, 14636680), (20, 13904846), (38, 7318340), (40, 6952423), (76, 3659170), (95, 2927336), (152, 1829585), (190, 1463668), (277, 1003960), (380, 731834), (554, 501980), (760, 365917), (1108, 250990), (1321, 210520), (1385, 200792), (2216, 125495), (2642, 105260), (2770, 100396), (5263, 52840), (5284, 52630), (5540, 50198), (6605, 42104), (10526, 26420), (10568, 26315), (11080, 25099), (13210, 21052)]