20261500

素因数分解:

$2^2\times 5^3\times 7^2\times {\mathrm{827}}^1$

素因数の和:860

約数の個数: 72

約数和(自身を含む): 51538032

約数和(自身を除く): 31276532

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 125, 140, 175, 196, 245, 250, 350, 490, 500, 700, 827, 875, 980, 1225, 1654, 1750, 2450, 3308, 3500, 4135, 4900, 5789, 6125, 8270, 11578, 12250, 16540, 20675, 23156, 24500, 28945, 40523, 41350, 57890, 81046, 82700, 103375, 115780, 144725, 162092, 202615, 206750, 289450, 405230, 413500, 578900, 723625, 810460, 1013075, 1447250, 2026150, 2894500, 4052300, 5065375, 10130750, 20261500]

約数ペア:

[(1, 20261500), (2, 10130750), (4, 5065375), (5, 4052300), (7, 2894500), (10, 2026150), (14, 1447250), (20, 1013075), (25, 810460), (28, 723625), (35, 578900), (49, 413500), (50, 405230), (70, 289450), (98, 206750), (100, 202615), (125, 162092), (140, 144725), (175, 115780), (196, 103375), (245, 82700), (250, 81046), (350, 57890), (490, 41350), (500, 40523), (700, 28945), (827, 24500), (875, 23156), (980, 20675), (1225, 16540), (1654, 12250), (1750, 11578), (2450, 8270), (3308, 6125), (3500, 5789), (4135, 4900)]