78215840

素因数分解:

$2^5\times 5^1\times {\mathrm{179}}^1\times {\mathrm{2731}}^1$

素因数の和:2925

約数の個数: 48

約数和(自身を含む): 185885280

約数和(自身を除く): 107669440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 179, 358, 716, 895, 1432, 1790, 2731, 2864, 3580, 5462, 5728, 7160, 10924, 13655, 14320, 21848, 27310, 28640, 43696, 54620, 87392, 109240, 218480, 436960, 488849, 977698, 1955396, 2444245, 3910792, 4888490, 7821584, 9776980, 15643168, 19553960, 39107920, 78215840]

約数ペア:

[(1, 78215840), (2, 39107920), (4, 19553960), (5, 15643168), (8, 9776980), (10, 7821584), (16, 4888490), (20, 3910792), (32, 2444245), (40, 1955396), (80, 977698), (160, 488849), (179, 436960), (358, 218480), (716, 109240), (895, 87392), (1432, 54620), (1790, 43696), (2731, 28640), (2864, 27310), (3580, 21848), (5462, 14320), (5728, 13655), (7160, 10924)]