201920975

素因数分解:

$5^2\times {\mathrm{89}}^1\times {\mathrm{151}}^1\times {\mathrm{601}}^1$

素因数の和:851

約数の個数: 24

約数和(自身を含む): 255296160

約数和(自身を除く): 53375185

約数列:

[1, 5, 25, 89, 151, 445, 601, 755, 2225, 3005, 3775, 13439, 15025, 53489, 67195, 90751, 267445, 335975, 453755, 1337225, 2268775, 8076839, 40384195, 201920975]

約数ペア:

[(1, 201920975), (5, 40384195), (25, 8076839), (89, 2268775), (151, 1337225), (445, 453755), (601, 335975), (755, 267445), (2225, 90751), (3005, 67195), (3775, 53489), (13439, 15025)]