261555

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:115

約数の個数: 32

約数和(自身を含む): 497664

約数和(自身を除く): 236109

約数列:

[1, 3, 5, 7, 15, 21, 35, 47, 53, 105, 141, 159, 235, 265, 329, 371, 705, 795, 987, 1113, 1645, 1855, 2491, 4935, 5565, 7473, 12455, 17437, 37365, 52311, 87185, 261555]

約数ペア:

[(1, 261555), (3, 87185), (5, 52311), (7, 37365), (15, 17437), (21, 12455), (35, 7473), (47, 5565), (53, 4935), (105, 2491), (141, 1855), (159, 1645), (235, 1113), (265, 987), (329, 795), (371, 705)]