20553450

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{263}}^1\times {\mathrm{521}}^1$

素因数の和:799

約数の個数: 48

約数和(自身を含む): 51264576

約数和(自身を除く): 30711126

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 150, 263, 521, 526, 789, 1042, 1315, 1563, 1578, 2605, 2630, 3126, 3945, 5210, 6575, 7815, 7890, 13025, 13150, 15630, 19725, 26050, 39075, 39450, 78150, 137023, 274046, 411069, 685115, 822138, 1370230, 2055345, 3425575, 4110690, 6851150, 10276725, 20553450]

約数ペア:

[(1, 20553450), (2, 10276725), (3, 6851150), (5, 4110690), (6, 3425575), (10, 2055345), (15, 1370230), (25, 822138), (30, 685115), (50, 411069), (75, 274046), (150, 137023), (263, 78150), (521, 39450), (526, 39075), (789, 26050), (1042, 19725), (1315, 15630), (1563, 13150), (1578, 13025), (2605, 7890), (2630, 7815), (3126, 6575), (3945, 5210)]