210654680

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{32309}}^1$

素因数の和:32483

約数の個数: 32

約数和(自身を含む): 476895600

約数和(自身を除く): 266240920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 32309, 64618, 129236, 161545, 258472, 323090, 646180, 1292360, 5266367, 10532734, 21065468, 26331835, 42130936, 52663670, 105327340, 210654680]

約数ペア:

[(1, 210654680), (2, 105327340), (4, 52663670), (5, 42130936), (8, 26331835), (10, 21065468), (20, 10532734), (40, 5266367), (163, 1292360), (326, 646180), (652, 323090), (815, 258472), (1304, 161545), (1630, 129236), (3260, 64618), (6520, 32309)]