1212781250

素因数分解:

$2^1\times 5^6\times {\mathrm{197}}^2$

素因数の和:426

約数の個数: 42

約数和(自身を含む): 2285537151

約数和(自身を除く): 1072755901

約数列:

[1, 2, 5, 10, 25, 50, 125, 197, 250, 394, 625, 985, 1250, 1970, 3125, 4925, 6250, 9850, 15625, 24625, 31250, 38809, 49250, 77618, 123125, 194045, 246250, 388090, 615625, 970225, 1231250, 1940450, 3078125, 4851125, 6156250, 9702250, 24255625, 48511250, 121278125, 242556250, 606390625, 1212781250]

約数ペア:

[(1, 1212781250), (2, 606390625), (5, 242556250), (10, 121278125), (25, 48511250), (50, 24255625), (125, 9702250), (197, 6156250), (250, 4851125), (394, 3078125), (625, 1940450), (985, 1231250), (1250, 970225), (1970, 615625), (3125, 388090), (4925, 246250), (6250, 194045), (9850, 123125), (15625, 77618), (24625, 49250), (31250, 38809)]