90040990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{571}}^1\times {\mathrm{1213}}^1$

素因数の和:1804

約数の個数: 32

約数和(自身を含む): 174990816

約数和(自身を除く): 84949826

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 571, 1142, 1213, 2426, 2855, 5710, 6065, 7423, 12130, 14846, 15769, 31538, 37115, 74230, 78845, 157690, 692623, 1385246, 3463115, 6926230, 9004099, 18008198, 45020495, 90040990]

約数ペア:

[(1, 90040990), (2, 45020495), (5, 18008198), (10, 9004099), (13, 6926230), (26, 3463115), (65, 1385246), (130, 692623), (571, 157690), (1142, 78845), (1213, 74230), (2426, 37115), (2855, 31538), (5710, 15769), (6065, 14846), (7423, 12130)]