155516980

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{109519}}^1$

素因数の和:109599

約数の個数: 24

約数和(自身を含む): 331188480

約数和(自身を除く): 175671500

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 109519, 219038, 438076, 547595, 1095190, 2190380, 7775849, 15551698, 31103396, 38879245, 77758490, 155516980]

約数ペア:

[(1, 155516980), (2, 77758490), (4, 38879245), (5, 31103396), (10, 15551698), (20, 7775849), (71, 2190380), (142, 1095190), (284, 547595), (355, 438076), (710, 219038), (1420, 109519)]