220840825

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{433}}^1\times {\mathrm{887}}^1$

素因数の和:1353

約数の個数: 24

約数和(自身を含む): 286731648

約数和(自身を除く): 65890823

約数列:

[1, 5, 23, 25, 115, 433, 575, 887, 2165, 4435, 9959, 10825, 20401, 22175, 49795, 102005, 248975, 384071, 510025, 1920355, 8833633, 9601775, 44168165, 220840825]

約数ペア:

[(1, 220840825), (5, 44168165), (23, 9601775), (25, 8833633), (115, 1920355), (433, 510025), (575, 384071), (887, 248975), (2165, 102005), (4435, 49795), (9959, 22175), (10825, 20401)]