71725775

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{131}}^1\times {\mathrm{181}}^1$

素因数の和:344

約数の個数: 36

約数和(自身を含む): 99050952

約数和(自身を除く): 27325177

約数列:

[1, 5, 11, 25, 55, 121, 131, 181, 275, 605, 655, 905, 1441, 1991, 3025, 3275, 4525, 7205, 9955, 15851, 21901, 23711, 36025, 49775, 79255, 109505, 118555, 260821, 396275, 547525, 592775, 1304105, 2869031, 6520525, 14345155, 71725775]

約数ペア:

[(1, 71725775), (5, 14345155), (11, 6520525), (25, 2869031), (55, 1304105), (121, 592775), (131, 547525), (181, 396275), (275, 260821), (605, 118555), (655, 109505), (905, 79255), (1441, 49775), (1991, 36025), (3025, 23711), (3275, 21901), (4525, 15851), (7205, 9955)]