87740720

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{10859}}^1$

素因数の和:10973

約数の個数: 40

約数和(自身を含む): 206035920

約数和(自身を除く): 118295200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1616, 2020, 4040, 8080, 10859, 21718, 43436, 54295, 86872, 108590, 173744, 217180, 434360, 868720, 1096759, 2193518, 4387036, 5483795, 8774072, 10967590, 17548144, 21935180, 43870360, 87740720]

約数ペア:

[(1, 87740720), (2, 43870360), (4, 21935180), (5, 17548144), (8, 10967590), (10, 8774072), (16, 5483795), (20, 4387036), (40, 2193518), (80, 1096759), (101, 868720), (202, 434360), (404, 217180), (505, 173744), (808, 108590), (1010, 86872), (1616, 54295), (2020, 43436), (4040, 21718), (8080, 10859)]