20718900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{23021}}^1$

素因数の和:23041

約数の個数: 54

約数和(自身を含む): 64945062

約数和(自身を除く): 44226162

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 150, 180, 225, 300, 450, 900, 23021, 46042, 69063, 92084, 115105, 138126, 207189, 230210, 276252, 345315, 414378, 460420, 575525, 690630, 828756, 1035945, 1151050, 1381260, 1726575, 2071890, 2302100, 3453150, 4143780, 5179725, 6906300, 10359450, 20718900]

約数ペア:

[(1, 20718900), (2, 10359450), (3, 6906300), (4, 5179725), (5, 4143780), (6, 3453150), (9, 2302100), (10, 2071890), (12, 1726575), (15, 1381260), (18, 1151050), (20, 1035945), (25, 828756), (30, 690630), (36, 575525), (45, 460420), (50, 414378), (60, 345315), (75, 276252), (90, 230210), (100, 207189), (150, 138126), (180, 115105), (225, 92084), (300, 69063), (450, 46042), (900, 23021)]