78742890

素因数分解:

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

素因数の和:20403

約数の個数: 48

約数和(自身を含む): 209503008

約数和(自身を除く): 130760118

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 43, 45, 86, 90, 129, 215, 258, 387, 430, 645, 774, 1290, 1935, 3870, 20347, 40694, 61041, 101735, 122082, 183123, 203470, 305205, 366246, 610410, 874921, 915615, 1749842, 1831230, 2624763, 4374605, 5249526, 7874289, 8749210, 13123815, 15748578, 26247630, 39371445, 78742890]

約数ペア:

[(1, 78742890), (2, 39371445), (3, 26247630), (5, 15748578), (6, 13123815), (9, 8749210), (10, 7874289), (15, 5249526), (18, 4374605), (30, 2624763), (43, 1831230), (45, 1749842), (86, 915615), (90, 874921), (129, 610410), (215, 366246), (258, 305205), (387, 203470), (430, 183123), (645, 122082), (774, 101735), (1290, 61041), (1935, 40694), (3870, 20347)]