820950

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{421}}^1$

素因数の和:449

約数の個数: 48

約数和(自身を含む): 2197776

約数和(自身を除く): 1376826

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 130, 150, 195, 325, 390, 421, 650, 842, 975, 1263, 1950, 2105, 2526, 4210, 5473, 6315, 10525, 10946, 12630, 16419, 21050, 27365, 31575, 32838, 54730, 63150, 82095, 136825, 164190, 273650, 410475, 820950]

約数ペア:

[(1, 820950), (2, 410475), (3, 273650), (5, 164190), (6, 136825), (10, 82095), (13, 63150), (15, 54730), (25, 32838), (26, 31575), (30, 27365), (39, 21050), (50, 16419), (65, 12630), (75, 10946), (78, 10525), (130, 6315), (150, 5473), (195, 4210), (325, 2526), (390, 2105), (421, 1950), (650, 1263), (842, 975)]