20510190

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{811}}^1$

素因数の和:1105

約数の個数: 48

約数和(自身を含む): 53582256

約数和(自身を除く): 33072066

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 281, 562, 811, 843, 1405, 1622, 1686, 2433, 2529, 2810, 4055, 4215, 4866, 5058, 7299, 8110, 8430, 12165, 12645, 14598, 24330, 25290, 36495, 72990, 227891, 455782, 683673, 1139455, 1367346, 2051019, 2278910, 3418365, 4102038, 6836730, 10255095, 20510190]

約数ペア:

[(1, 20510190), (2, 10255095), (3, 6836730), (5, 4102038), (6, 3418365), (9, 2278910), (10, 2051019), (15, 1367346), (18, 1139455), (30, 683673), (45, 455782), (90, 227891), (281, 72990), (562, 36495), (811, 25290), (843, 24330), (1405, 14598), (1622, 12645), (1686, 12165), (2433, 8430), (2529, 8110), (2810, 7299), (4055, 5058), (4215, 4866)]