4022800

素因数分解:

$2^4\times 5^2\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:220

約数の個数: 60

約数和(自身を含む): 9859860

約数和(自身を除く): 5837060

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 89, 100, 113, 178, 200, 226, 356, 400, 445, 452, 565, 712, 890, 904, 1130, 1424, 1780, 1808, 2225, 2260, 2825, 3560, 4450, 4520, 5650, 7120, 8900, 9040, 10057, 11300, 17800, 20114, 22600, 35600, 40228, 45200, 50285, 80456, 100570, 160912, 201140, 251425, 402280, 502850, 804560, 1005700, 2011400, 4022800]

約数ペア:

[(1, 4022800), (2, 2011400), (4, 1005700), (5, 804560), (8, 502850), (10, 402280), (16, 251425), (20, 201140), (25, 160912), (40, 100570), (50, 80456), (80, 50285), (89, 45200), (100, 40228), (113, 35600), (178, 22600), (200, 20114), (226, 17800), (356, 11300), (400, 10057), (445, 9040), (452, 8900), (565, 7120), (712, 5650), (890, 4520), (904, 4450), (1130, 3560), (1424, 2825), (1780, 2260), (1808, 2225)]