19976640

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{20809}}^1$

素因数の和:20829

約数の個数: 56

約数和(自身を含む): 63428880

約数和(自身を除く): 43452240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 160, 192, 240, 320, 480, 960, 20809, 41618, 62427, 83236, 104045, 124854, 166472, 208090, 249708, 312135, 332944, 416180, 499416, 624270, 665888, 832360, 998832, 1248540, 1331776, 1664720, 1997664, 2497080, 3329440, 3995328, 4994160, 6658880, 9988320, 19976640]

約数ペア:

[(1, 19976640), (2, 9988320), (3, 6658880), (4, 4994160), (5, 3995328), (6, 3329440), (8, 2497080), (10, 1997664), (12, 1664720), (15, 1331776), (16, 1248540), (20, 998832), (24, 832360), (30, 665888), (32, 624270), (40, 499416), (48, 416180), (60, 332944), (64, 312135), (80, 249708), (96, 208090), (120, 166472), (160, 124854), (192, 104045), (240, 83236), (320, 62427), (480, 41618), (960, 20809)]