90907270

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{4441}}^1$

素因数の和:4560

約数の個数: 32

約数和(自身を含む): 172704960

約数和(自身を除く): 81797690

約数列:

[1, 2, 5, 10, 23, 46, 89, 115, 178, 230, 445, 890, 2047, 4094, 4441, 8882, 10235, 20470, 22205, 44410, 102143, 204286, 395249, 510715, 790498, 1021430, 1976245, 3952490, 9090727, 18181454, 45453635, 90907270]

約数ペア:

[(1, 90907270), (2, 45453635), (5, 18181454), (10, 9090727), (23, 3952490), (46, 1976245), (89, 1021430), (115, 790498), (178, 510715), (230, 395249), (445, 204286), (890, 102143), (2047, 44410), (4094, 22205), (4441, 20470), (8882, 10235)]