200900

素因数分解:

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

素因数の和:69

約数の個数: 54

約数和(自身を含む): 519498

約数和(自身を除く): 318598

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 41, 49, 50, 70, 82, 98, 100, 140, 164, 175, 196, 205, 245, 287, 350, 410, 490, 574, 700, 820, 980, 1025, 1148, 1225, 1435, 2009, 2050, 2450, 2870, 4018, 4100, 4900, 5740, 7175, 8036, 10045, 14350, 20090, 28700, 40180, 50225, 100450, 200900]

約数ペア:

[(1, 200900), (2, 100450), (4, 50225), (5, 40180), (7, 28700), (10, 20090), (14, 14350), (20, 10045), (25, 8036), (28, 7175), (35, 5740), (41, 4900), (49, 4100), (50, 4018), (70, 2870), (82, 2450), (98, 2050), (100, 2009), (140, 1435), (164, 1225), (175, 1148), (196, 1025), (205, 980), (245, 820), (287, 700), (350, 574), (410, 490)]