217967691820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{1483}}^1\times {\mathrm{20357}}^1$

素因数の和:21887

約数の個数: 72

約数和(自身を含む): 483440774544

約数和(自身を除く): 265473082724

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1444, 1483, 1805, 2966, 3610, 5932, 7220, 7415, 14830, 20357, 28177, 29660, 40714, 56354, 81428, 101785, 112708, 140885, 203570, 281770, 386783, 407140, 535363, 563540, 773566, 1070726, 1547132, 1933915, 2141452, 2676815, 3867830, 5353630, 7348877, 7735660, 10707260, 14697754, 29395508, 30189431, 36744385, 60378862, 73488770, 120757724, 146977540, 150947155, 301894310, 573599189, 603788620, 1147198378, 2294396756, 2867995945, 5735991890, 10898384591, 11471983780, 21796769182, 43593538364, 54491922955, 108983845910, 217967691820]

約数ペア:

[(1, 217967691820), (2, 108983845910), (4, 54491922955), (5, 43593538364), (10, 21796769182), (19, 11471983780), (20, 10898384591), (38, 5735991890), (76, 2867995945), (95, 2294396756), (190, 1147198378), (361, 603788620), (380, 573599189), (722, 301894310), (1444, 150947155), (1483, 146977540), (1805, 120757724), (2966, 73488770), (3610, 60378862), (5932, 36744385), (7220, 30189431), (7415, 29395508), (14830, 14697754), (20357, 10707260), (28177, 7735660), (29660, 7348877), (40714, 5353630), (56354, 3867830), (81428, 2676815), (101785, 2141452), (112708, 1933915), (140885, 1547132), (203570, 1070726), (281770, 773566), (386783, 563540), (407140, 535363)]