77879980

素因数分解:

$2^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{14369}}^1$

素因数の和:14649

約数の個数: 24

約数和(自身を含む): 164162880

約数和(自身を除く): 86282900

約数列:

[1, 2, 4, 5, 10, 20, 271, 542, 1084, 1355, 2710, 5420, 14369, 28738, 57476, 71845, 143690, 287380, 3893999, 7787998, 15575996, 19469995, 38939990, 77879980]

約数ペア:

[(1, 77879980), (2, 38939990), (4, 19469995), (5, 15575996), (10, 7787998), (20, 3893999), (271, 287380), (542, 143690), (1084, 71845), (1355, 57476), (2710, 28738), (5420, 14369)]