87669980

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{18341}}^1$

素因数の和:18589

約数の個数: 24

約数和(自身を含む): 184887360

約数和(自身を除く): 97217380

約数列:

[1, 2, 4, 5, 10, 20, 239, 478, 956, 1195, 2390, 4780, 18341, 36682, 73364, 91705, 183410, 366820, 4383499, 8766998, 17533996, 21917495, 43834990, 87669980]

約数ペア:

[(1, 87669980), (2, 43834990), (4, 21917495), (5, 17533996), (10, 8766998), (20, 4383499), (239, 366820), (478, 183410), (956, 91705), (1195, 73364), (2390, 36682), (4780, 18341)]