20857530

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{239}}^1\times {\mathrm{2909}}^1$

素因数の和:3158

約数の個数: 32

約数和(自身を含む): 50284800

約数和(自身を除く): 29427270

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 239, 478, 717, 1195, 1434, 2390, 2909, 3585, 5818, 7170, 8727, 14545, 17454, 29090, 43635, 87270, 695251, 1390502, 2085753, 3476255, 4171506, 6952510, 10428765, 20857530]

約数ペア:

[(1, 20857530), (2, 10428765), (3, 6952510), (5, 4171506), (6, 3476255), (10, 2085753), (15, 1390502), (30, 695251), (239, 87270), (478, 43635), (717, 29090), (1195, 17454), (1434, 14545), (2390, 8727), (2909, 7170), (3585, 5818)]