19126990090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{457}}^1\times {\mathrm{321949}}^1$

素因数の和:322426

約数の個数: 32

約数和(自身を含む): 37158181200

約数和(自身を除く): 18031191110

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 457, 914, 2285, 4570, 5941, 11882, 29705, 59410, 321949, 643898, 1609745, 3219490, 4185337, 8370674, 20926685, 41853370, 147130693, 294261386, 735653465, 1471306930, 1912699009, 3825398018, 9563495045, 19126990090]

約数ペア:

[(1, 19126990090), (2, 9563495045), (5, 3825398018), (10, 1912699009), (13, 1471306930), (26, 735653465), (65, 294261386), (130, 147130693), (457, 41853370), (914, 20926685), (2285, 8370674), (4570, 4185337), (5941, 3219490), (11882, 1609745), (29705, 643898), (59410, 321949)]