25396956650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{163}}^1\times {\mathrm{18439}}^1$

素因数の和:18640

約数の個数: 72

約数和(自身を含む): 51468179040

約数和(自身を除く): 26071222390

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 163, 169, 325, 326, 338, 650, 815, 845, 1630, 1690, 2119, 4075, 4225, 4238, 8150, 8450, 10595, 18439, 21190, 27547, 36878, 52975, 55094, 92195, 105950, 137735, 184390, 239707, 275470, 460975, 479414, 688675, 921950, 1198535, 1377350, 2397070, 3005557, 3116191, 5992675, 6011114, 6232382, 11985350, 15027785, 15580955, 30055570, 31161910, 39072241, 75138925, 77904775, 78144482, 150277850, 155809550, 195361205, 390722410, 507939133, 976806025, 1015878266, 1953612050, 2539695665, 5079391330, 12698478325, 25396956650]

約数ペア:

[(1, 25396956650), (2, 12698478325), (5, 5079391330), (10, 2539695665), (13, 1953612050), (25, 1015878266), (26, 976806025), (50, 507939133), (65, 390722410), (130, 195361205), (163, 155809550), (169, 150277850), (325, 78144482), (326, 77904775), (338, 75138925), (650, 39072241), (815, 31161910), (845, 30055570), (1630, 15580955), (1690, 15027785), (2119, 11985350), (4075, 6232382), (4225, 6011114), (4238, 5992675), (8150, 3116191), (8450, 3005557), (10595, 2397070), (18439, 1377350), (21190, 1198535), (27547, 921950), (36878, 688675), (52975, 479414), (55094, 460975), (92195, 275470), (105950, 239707), (137735, 184390)]