221353510

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{419}}^1\times {\mathrm{7547}}^1$

素因数の和:7980

約数の個数: 32

約数和(自身を含む): 456503040

約数和(自身を除く): 235149530

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 419, 838, 2095, 2933, 4190, 5866, 7547, 14665, 15094, 29330, 37735, 52829, 75470, 105658, 264145, 528290, 3162193, 6324386, 15810965, 22135351, 31621930, 44270702, 110676755, 221353510]

約数ペア:

[(1, 221353510), (2, 110676755), (5, 44270702), (7, 31621930), (10, 22135351), (14, 15810965), (35, 6324386), (70, 3162193), (419, 528290), (838, 264145), (2095, 105658), (2933, 75470), (4190, 52829), (5866, 37735), (7547, 29330), (14665, 15094)]