20197925

素因数分解:

$5^2\times {\mathrm{11}}^3\times {\mathrm{607}}^1$

素因数の和:650

約数の個数: 24

約数和(自身を含む): 27593472

約数和(自身を除く): 7395547

約数列:

[1, 5, 11, 25, 55, 121, 275, 605, 607, 1331, 3025, 3035, 6655, 6677, 15175, 33275, 33385, 73447, 166925, 367235, 807917, 1836175, 4039585, 20197925]

約数ペア:

[(1, 20197925), (5, 4039585), (11, 1836175), (25, 807917), (55, 367235), (121, 166925), (275, 73447), (605, 33385), (607, 33275), (1331, 15175), (3025, 6677), (3035, 6655)]