156968920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{263}}^1\times {\mathrm{347}}^1$

素因数の和:664

約数の個数: 64

約数和(自身を含む): 363813120

約数和(自身を除く): 206844200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 263, 344, 347, 430, 526, 694, 860, 1052, 1315, 1388, 1720, 1735, 2104, 2630, 2776, 3470, 5260, 6940, 10520, 11309, 13880, 14921, 22618, 29842, 45236, 56545, 59684, 74605, 90472, 91261, 113090, 119368, 149210, 182522, 226180, 298420, 365044, 452360, 456305, 596840, 730088, 912610, 1825220, 3650440, 3924223, 7848446, 15696892, 19621115, 31393784, 39242230, 78484460, 156968920]

約数ペア:

[(1, 156968920), (2, 78484460), (4, 39242230), (5, 31393784), (8, 19621115), (10, 15696892), (20, 7848446), (40, 3924223), (43, 3650440), (86, 1825220), (172, 912610), (215, 730088), (263, 596840), (344, 456305), (347, 452360), (430, 365044), (526, 298420), (694, 226180), (860, 182522), (1052, 149210), (1315, 119368), (1388, 113090), (1720, 91261), (1735, 90472), (2104, 74605), (2630, 59684), (2776, 56545), (3470, 45236), (5260, 29842), (6940, 22618), (10520, 14921), (11309, 13880)]