205000

素因数分解:

$2^3\times 5^4\times {\mathrm{41}}^1$

素因数の和:67

約数の個数: 40

約数和(自身を含む): 492030

約数和(自身を除く): 287030

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 50, 82, 100, 125, 164, 200, 205, 250, 328, 410, 500, 625, 820, 1000, 1025, 1250, 1640, 2050, 2500, 4100, 5000, 5125, 8200, 10250, 20500, 25625, 41000, 51250, 102500, 205000]

約数ペア:

[(1, 205000), (2, 102500), (4, 51250), (5, 41000), (8, 25625), (10, 20500), (20, 10250), (25, 8200), (40, 5125), (41, 5000), (50, 4100), (82, 2500), (100, 2050), (125, 1640), (164, 1250), (200, 1025), (205, 1000), (250, 820), (328, 625), (410, 500)]