401800

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{41}}^1$

素因数の和:71

約数の個数: 72

約数和(自身を含む): 1113210

約数和(自身を除く): 711410

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 41, 49, 50, 56, 70, 82, 98, 100, 140, 164, 175, 196, 200, 205, 245, 280, 287, 328, 350, 392, 410, 490, 574, 700, 820, 980, 1025, 1148, 1225, 1400, 1435, 1640, 1960, 2009, 2050, 2296, 2450, 2870, 4018, 4100, 4900, 5740, 7175, 8036, 8200, 9800, 10045, 11480, 14350, 16072, 20090, 28700, 40180, 50225, 57400, 80360, 100450, 200900, 401800]

約数ペア:

[(1, 401800), (2, 200900), (4, 100450), (5, 80360), (7, 57400), (8, 50225), (10, 40180), (14, 28700), (20, 20090), (25, 16072), (28, 14350), (35, 11480), (40, 10045), (41, 9800), (49, 8200), (50, 8036), (56, 7175), (70, 5740), (82, 4900), (98, 4100), (100, 4018), (140, 2870), (164, 2450), (175, 2296), (196, 2050), (200, 2009), (205, 1960), (245, 1640), (280, 1435), (287, 1400), (328, 1225), (350, 1148), (392, 1025), (410, 980), (490, 820), (574, 700)]