157485780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{20347}}^1$

素因数の和:20405

約数の個数: 72

約数和(自身を含む): 488840352

約数和(自身を除く): 331354572

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2580, 3870, 7740, 20347, 40694, 61041, 81388, 101735, 122082, 183123, 203470, 244164, 305205, 366246, 406940, 610410, 732492, 874921, 915615, 1220820, 1749842, 1831230, 2624763, 3499684, 3662460, 4374605, 5249526, 7874289, 8749210, 10499052, 13123815, 15748578, 17498420, 26247630, 31497156, 39371445, 52495260, 78742890, 157485780]

約数ペア:

[(1, 157485780), (2, 78742890), (3, 52495260), (4, 39371445), (5, 31497156), (6, 26247630), (9, 17498420), (10, 15748578), (12, 13123815), (15, 10499052), (18, 8749210), (20, 7874289), (30, 5249526), (36, 4374605), (43, 3662460), (45, 3499684), (60, 2624763), (86, 1831230), (90, 1749842), (129, 1220820), (172, 915615), (180, 874921), (215, 732492), (258, 610410), (387, 406940), (430, 366246), (516, 305205), (645, 244164), (774, 203470), (860, 183123), (1290, 122082), (1548, 101735), (1935, 81388), (2580, 61041), (3870, 40694), (7740, 20347)]