20311400

素因数分解:

$2^3\times 5^2\times {\mathrm{41}}^1\times {\mathrm{2477}}^1$

素因数の和:2534

約数の個数: 48

約数和(自身を含む): 48395340

約数和(自身を除く): 28083940

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 50, 82, 100, 164, 200, 205, 328, 410, 820, 1025, 1640, 2050, 2477, 4100, 4954, 8200, 9908, 12385, 19816, 24770, 49540, 61925, 99080, 101557, 123850, 203114, 247700, 406228, 495400, 507785, 812456, 1015570, 2031140, 2538925, 4062280, 5077850, 10155700, 20311400]

約数ペア:

[(1, 20311400), (2, 10155700), (4, 5077850), (5, 4062280), (8, 2538925), (10, 2031140), (20, 1015570), (25, 812456), (40, 507785), (41, 495400), (50, 406228), (82, 247700), (100, 203114), (164, 123850), (200, 101557), (205, 99080), (328, 61925), (410, 49540), (820, 24770), (1025, 19816), (1640, 12385), (2050, 9908), (2477, 8200), (4100, 4954)]