79432720

素因数分解:

$2^4\times 5^1\times {\mathrm{641}}^1\times {\mathrm{1549}}^1$

素因数の和:2203

約数の個数: 40

約数和(自身を含む): 185088600

約数和(自身を除く): 105655880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 641, 1282, 1549, 2564, 3098, 3205, 5128, 6196, 6410, 7745, 10256, 12392, 12820, 15490, 24784, 25640, 30980, 51280, 61960, 123920, 992909, 1985818, 3971636, 4964545, 7943272, 9929090, 15886544, 19858180, 39716360, 79432720]

約数ペア:

[(1, 79432720), (2, 39716360), (4, 19858180), (5, 15886544), (8, 9929090), (10, 7943272), (16, 4964545), (20, 3971636), (40, 1985818), (80, 992909), (641, 123920), (1282, 61960), (1549, 51280), (2564, 30980), (3098, 25640), (3205, 24784), (5128, 15490), (6196, 12820), (6410, 12392), (7745, 10256)]