20645800

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{14747}}^1$

素因数の和:14770

約数の個数: 48

約数和(自身を含む): 54862560

約数和(自身を除く): 34216760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 140, 175, 200, 280, 350, 700, 1400, 14747, 29494, 58988, 73735, 103229, 117976, 147470, 206458, 294940, 368675, 412916, 516145, 589880, 737350, 825832, 1032290, 1474700, 2064580, 2580725, 2949400, 4129160, 5161450, 10322900, 20645800]

約数ペア:

[(1, 20645800), (2, 10322900), (4, 5161450), (5, 4129160), (7, 2949400), (8, 2580725), (10, 2064580), (14, 1474700), (20, 1032290), (25, 825832), (28, 737350), (35, 589880), (40, 516145), (50, 412916), (56, 368675), (70, 294940), (100, 206458), (140, 147470), (175, 117976), (200, 103229), (280, 73735), (350, 58988), (700, 29494), (1400, 14747)]