201973525

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{20047}}^1$

素因数の和:20101

約数の個数: 24

約数和(自身を含む): 278426624

約数和(自身を除く): 76453099

約数列:

[1, 5, 13, 25, 31, 65, 155, 325, 403, 775, 2015, 10075, 20047, 100235, 260611, 501175, 621457, 1303055, 3107285, 6515275, 8078941, 15536425, 40394705, 201973525]

約数ペア:

[(1, 201973525), (5, 40394705), (13, 15536425), (25, 8078941), (31, 6515275), (65, 3107285), (155, 1303055), (325, 621457), (403, 501175), (775, 260611), (2015, 100235), (10075, 20047)]