19719780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{2399}}^1$

素因数の和:2548

約数の個数: 48

約数和(自身を含む): 55641600

約数和(自身を除く): 35921820

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 137, 274, 411, 548, 685, 822, 1370, 1644, 2055, 2399, 2740, 4110, 4798, 7197, 8220, 9596, 11995, 14394, 23990, 28788, 35985, 47980, 71970, 143940, 328663, 657326, 985989, 1314652, 1643315, 1971978, 3286630, 3943956, 4929945, 6573260, 9859890, 19719780]

約数ペア:

[(1, 19719780), (2, 9859890), (3, 6573260), (4, 4929945), (5, 3943956), (6, 3286630), (10, 1971978), (12, 1643315), (15, 1314652), (20, 985989), (30, 657326), (60, 328663), (137, 143940), (274, 71970), (411, 47980), (548, 35985), (685, 28788), (822, 23990), (1370, 14394), (1644, 11995), (2055, 9596), (2399, 8220), (2740, 7197), (4110, 4798)]