20023025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{4283}}^1$

素因数の和:4321

約数の個数: 24

約数和(自身を含む): 28685664

約数和(自身を除く): 8662639

約数列:

[1, 5, 11, 17, 25, 55, 85, 187, 275, 425, 935, 4283, 4675, 21415, 47113, 72811, 107075, 235565, 364055, 800921, 1177825, 1820275, 4004605, 20023025]

約数ペア:

[(1, 20023025), (5, 4004605), (11, 1820275), (17, 1177825), (25, 800921), (55, 364055), (85, 235565), (187, 107075), (275, 72811), (425, 47113), (935, 21415), (4283, 4675)]