641355

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1$

素因数の和:68

約数の個数: 48

約数和(自身を含む): 1264896

約数和(自身を除く): 623541

約数列:

[1, 3, 5, 11, 13, 15, 23, 33, 39, 55, 65, 69, 115, 143, 165, 169, 195, 253, 299, 345, 429, 507, 715, 759, 845, 897, 1265, 1495, 1859, 2145, 2535, 3289, 3795, 3887, 4485, 5577, 9295, 9867, 11661, 16445, 19435, 27885, 42757, 49335, 58305, 128271, 213785, 641355]

約数ペア:

[(1, 641355), (3, 213785), (5, 128271), (11, 58305), (13, 49335), (15, 42757), (23, 27885), (33, 19435), (39, 16445), (55, 11661), (65, 9867), (69, 9295), (115, 5577), (143, 4485), (165, 3887), (169, 3795), (195, 3289), (253, 2535), (299, 2145), (345, 1859), (429, 1495), (507, 1265), (715, 897), (759, 845)]