220471075

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{72883}}^1$

素因数の和:72915

約数の個数: 18

約数和(自身を含む): 300500732

約数和(自身を除く): 80029657

約数列:

[1, 5, 11, 25, 55, 121, 275, 605, 3025, 72883, 364415, 801713, 1822075, 4008565, 8818843, 20042825, 44094215, 220471075]

約数ペア:

[(1, 220471075), (5, 44094215), (11, 20042825), (25, 8818843), (55, 4008565), (121, 1822075), (275, 801713), (605, 364415), (3025, 72883)]