8220500

素因数分解:

$2^2\times 5^3\times {\mathrm{41}}^1\times {\mathrm{401}}^1$

素因数の和:461

約数の個数: 48

約数和(自身を含む): 18437328

約数和(自身を除く): 10216828

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 125, 164, 205, 250, 401, 410, 500, 802, 820, 1025, 1604, 2005, 2050, 4010, 4100, 5125, 8020, 10025, 10250, 16441, 20050, 20500, 32882, 40100, 50125, 65764, 82205, 100250, 164410, 200500, 328820, 411025, 822050, 1644100, 2055125, 4110250, 8220500]

約数ペア:

[(1, 8220500), (2, 4110250), (4, 2055125), (5, 1644100), (10, 822050), (20, 411025), (25, 328820), (41, 200500), (50, 164410), (82, 100250), (100, 82205), (125, 65764), (164, 50125), (205, 40100), (250, 32882), (401, 20500), (410, 20050), (500, 16441), (802, 10250), (820, 10025), (1025, 8020), (1604, 5125), (2005, 4100), (2050, 4010)]