61638220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{397}}^1\times {\mathrm{1109}}^1$

素因数の和:1522

約数の個数: 48

約数和(自身を含む): 148438080

約数和(自身を除く): 86799860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 397, 794, 1109, 1588, 1985, 2218, 2779, 3970, 4436, 5545, 5558, 7763, 7940, 11090, 11116, 13895, 15526, 22180, 27790, 31052, 38815, 55580, 77630, 155260, 440273, 880546, 1761092, 2201365, 3081911, 4402730, 6163822, 8805460, 12327644, 15409555, 30819110, 61638220]

約数ペア:

[(1, 61638220), (2, 30819110), (4, 15409555), (5, 12327644), (7, 8805460), (10, 6163822), (14, 4402730), (20, 3081911), (28, 2201365), (35, 1761092), (70, 880546), (140, 440273), (397, 155260), (794, 77630), (1109, 55580), (1588, 38815), (1985, 31052), (2218, 27790), (2779, 22180), (3970, 15526), (4436, 13895), (5545, 11116), (5558, 11090), (7763, 7940)]