80275775

素因数分解:

$5^2\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{331}}^1$

素因数の和:539

約数の個数: 24

約数和(自身を含む): 101890800

約数和(自身を除く): 21615025

約数列:

[1, 5, 25, 89, 109, 331, 445, 545, 1655, 2225, 2725, 8275, 9701, 29459, 36079, 48505, 147295, 180395, 242525, 736475, 901975, 3211031, 16055155, 80275775]

約数ペア:

[(1, 80275775), (5, 16055155), (25, 3211031), (89, 901975), (109, 736475), (331, 242525), (445, 180395), (545, 147295), (1655, 48505), (2225, 36079), (2725, 29459), (8275, 9701)]