18195280

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2879}}^1$

素因数の和:2971

約数の個数: 40

約数和(自身を含む): 42854400

約数和(自身を除く): 24659120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 2879, 3160, 5758, 6320, 11516, 14395, 23032, 28790, 46064, 57580, 115160, 227441, 230320, 454882, 909764, 1137205, 1819528, 2274410, 3639056, 4548820, 9097640, 18195280]

約数ペア:

[(1, 18195280), (2, 9097640), (4, 4548820), (5, 3639056), (8, 2274410), (10, 1819528), (16, 1137205), (20, 909764), (40, 454882), (79, 230320), (80, 227441), (158, 115160), (316, 57580), (395, 46064), (632, 28790), (790, 23032), (1264, 14395), (1580, 11516), (2879, 6320), (3160, 5758)]