18800440

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{12703}}^1$

素因数の和:12751

約数の個数: 32

約数和(自身を含む): 43447680

約数和(自身を除く): 24647240

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 12703, 25406, 50812, 63515, 101624, 127030, 254060, 470011, 508120, 940022, 1880044, 2350055, 3760088, 4700110, 9400220, 18800440]

約数ペア:

[(1, 18800440), (2, 9400220), (4, 4700110), (5, 3760088), (8, 2350055), (10, 1880044), (20, 940022), (37, 508120), (40, 470011), (74, 254060), (148, 127030), (185, 101624), (296, 63515), (370, 50812), (740, 25406), (1480, 12703)]