345540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{443}}^1$

素因数の和:468

約数の個数: 48

約数和(自身を含む): 1044288

約数和(自身を除く): 698748

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 443, 780, 886, 1329, 1772, 2215, 2658, 4430, 5316, 5759, 6645, 8860, 11518, 13290, 17277, 23036, 26580, 28795, 34554, 57590, 69108, 86385, 115180, 172770, 345540]

約数ペア:

[(1, 345540), (2, 172770), (3, 115180), (4, 86385), (5, 69108), (6, 57590), (10, 34554), (12, 28795), (13, 26580), (15, 23036), (20, 17277), (26, 13290), (30, 11518), (39, 8860), (52, 6645), (60, 5759), (65, 5316), (78, 4430), (130, 2658), (156, 2215), (195, 1772), (260, 1329), (390, 886), (443, 780)]