20017525

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{877}}^1$

素因数の和:981

約数の個数: 24

約数和(自身を含む): 27435744

約数和(自身を除く): 7418219

約数列:

[1, 5, 11, 25, 55, 83, 275, 415, 877, 913, 2075, 4385, 4565, 9647, 21925, 22825, 48235, 72791, 241175, 363955, 800701, 1819775, 4003505, 20017525]

約数ペア:

[(1, 20017525), (5, 4003505), (11, 1819775), (25, 800701), (55, 363955), (83, 241175), (275, 72791), (415, 48235), (877, 22825), (913, 21925), (2075, 9647), (4385, 4565)]