18766240

素因数分解:

$2^5\times 5^1\times {\mathrm{53}}^1\times {\mathrm{2213}}^1$

素因数の和:2281

約数の個数: 48

約数和(自身を含む): 45192168

約数和(自身を除く): 26425928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 80, 106, 160, 212, 265, 424, 530, 848, 1060, 1696, 2120, 2213, 4240, 4426, 8480, 8852, 11065, 17704, 22130, 35408, 44260, 70816, 88520, 117289, 177040, 234578, 354080, 469156, 586445, 938312, 1172890, 1876624, 2345780, 3753248, 4691560, 9383120, 18766240]

約数ペア:

[(1, 18766240), (2, 9383120), (4, 4691560), (5, 3753248), (8, 2345780), (10, 1876624), (16, 1172890), (20, 938312), (32, 586445), (40, 469156), (53, 354080), (80, 234578), (106, 177040), (160, 117289), (212, 88520), (265, 70816), (424, 44260), (530, 35408), (848, 22130), (1060, 17704), (1696, 11065), (2120, 8852), (2213, 8480), (4240, 4426)]