84879980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{249647}}^1$

素因数の和:249673

約数の個数: 24

約数和(自身を含む): 188733888

約数和(自身を除く): 103853908

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 249647, 499294, 998588, 1248235, 2496470, 4243999, 4992940, 8487998, 16975996, 21219995, 42439990, 84879980]

約数ペア:

[(1, 84879980), (2, 42439990), (4, 21219995), (5, 16975996), (10, 8487998), (17, 4992940), (20, 4243999), (34, 2496470), (68, 1248235), (85, 998588), (170, 499294), (340, 249647)]