20809110

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{503}}^1$

素因数の和:717

約数の個数: 64

約数和(自身を含む): 57480192

約数和(自身を除く): 36671082

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 197, 210, 394, 503, 591, 985, 1006, 1182, 1379, 1509, 1970, 2515, 2758, 2955, 3018, 3521, 4137, 5030, 5910, 6895, 7042, 7545, 8274, 10563, 13790, 15090, 17605, 20685, 21126, 35210, 41370, 52815, 99091, 105630, 198182, 297273, 495455, 594546, 693637, 990910, 1387274, 1486365, 2080911, 2972730, 3468185, 4161822, 6936370, 10404555, 20809110]

約数ペア:

[(1, 20809110), (2, 10404555), (3, 6936370), (5, 4161822), (6, 3468185), (7, 2972730), (10, 2080911), (14, 1486365), (15, 1387274), (21, 990910), (30, 693637), (35, 594546), (42, 495455), (70, 297273), (105, 198182), (197, 105630), (210, 99091), (394, 52815), (503, 41370), (591, 35210), (985, 21126), (1006, 20685), (1182, 17605), (1379, 15090), (1509, 13790), (1970, 10563), (2515, 8274), (2758, 7545), (2955, 7042), (3018, 6895), (3521, 5910), (4137, 5030)]