68531960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{311}}^1\times {\mathrm{787}}^1$

素因数の和:1116

約数の個数: 64

約数和(自身を含む): 177016320

約数和(自身を除く): 108484360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 311, 622, 787, 1244, 1555, 1574, 2177, 2488, 3110, 3148, 3935, 4354, 5509, 6220, 6296, 7870, 8708, 10885, 11018, 12440, 15740, 17416, 21770, 22036, 27545, 31480, 43540, 44072, 55090, 87080, 110180, 220360, 244757, 489514, 979028, 1223785, 1713299, 1958056, 2447570, 3426598, 4895140, 6853196, 8566495, 9790280, 13706392, 17132990, 34265980, 68531960]

約数ペア:

[(1, 68531960), (2, 34265980), (4, 17132990), (5, 13706392), (7, 9790280), (8, 8566495), (10, 6853196), (14, 4895140), (20, 3426598), (28, 2447570), (35, 1958056), (40, 1713299), (56, 1223785), (70, 979028), (140, 489514), (280, 244757), (311, 220360), (622, 110180), (787, 87080), (1244, 55090), (1555, 44072), (1574, 43540), (2177, 31480), (2488, 27545), (3110, 22036), (3148, 21770), (3935, 17416), (4354, 15740), (5509, 12440), (6220, 11018), (6296, 10885), (7870, 8708)]