1999870825

素因数分解:

$5^2\times {\mathrm{97}}^1\times {\mathrm{193}}^1\times {\mathrm{4273}}^1$

素因数の和:4573

約数の個数: 24

約数和(自身を含む): 2518975928

約数和(自身を除く): 519105103

約数列:

[1, 5, 25, 97, 193, 485, 965, 2425, 4273, 4825, 18721, 21365, 93605, 106825, 414481, 468025, 824689, 2072405, 4123445, 10362025, 20617225, 79994833, 399974165, 1999870825]

約数ペア:

[(1, 1999870825), (5, 399974165), (25, 79994833), (97, 20617225), (193, 10362025), (485, 4123445), (965, 2072405), (2425, 824689), (4273, 468025), (4825, 414481), (18721, 106825), (21365, 93605)]