201438775

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{4261}}^1$

素因数の和:4363

約数の個数: 24

約数和(自身を含む): 262130048

約数和(自身を除く): 60691273

約数列:

[1, 5, 25, 31, 61, 155, 305, 775, 1525, 1891, 4261, 9455, 21305, 47275, 106525, 132091, 259921, 660455, 1299605, 3302275, 6498025, 8057551, 40287755, 201438775]

約数ペア:

[(1, 201438775), (5, 40287755), (25, 8057551), (31, 6498025), (61, 3302275), (155, 1299605), (305, 660455), (775, 259921), (1525, 132091), (1891, 106525), (4261, 47275), (9455, 21305)]