1285207550

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{2689}}^1$

素因数の和:2802

約数の個数: 72

約数和(自身を含む): 2661808800

約数和(自身を除く): 1376601250

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 79, 110, 121, 158, 242, 275, 395, 550, 605, 790, 869, 1210, 1738, 1975, 2689, 3025, 3950, 4345, 5378, 6050, 8690, 9559, 13445, 19118, 21725, 26890, 29579, 43450, 47795, 59158, 67225, 95590, 134450, 147895, 212431, 238975, 295790, 325369, 424862, 477950, 650738, 739475, 1062155, 1478950, 1626845, 2124310, 2336741, 3253690, 4673482, 5310775, 8134225, 10621550, 11683705, 16268450, 23367410, 25704151, 51408302, 58418525, 116837050, 128520755, 257041510, 642603775, 1285207550]

約数ペア:

[(1, 1285207550), (2, 642603775), (5, 257041510), (10, 128520755), (11, 116837050), (22, 58418525), (25, 51408302), (50, 25704151), (55, 23367410), (79, 16268450), (110, 11683705), (121, 10621550), (158, 8134225), (242, 5310775), (275, 4673482), (395, 3253690), (550, 2336741), (605, 2124310), (790, 1626845), (869, 1478950), (1210, 1062155), (1738, 739475), (1975, 650738), (2689, 477950), (3025, 424862), (3950, 325369), (4345, 295790), (5378, 238975), (6050, 212431), (8690, 147895), (9559, 134450), (13445, 95590), (19118, 67225), (21725, 59158), (26890, 47795), (29579, 43450)]