1990474940

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{36847}}^1$

素因数の和:36966

約数の個数: 48

約数和(自身を含む): 4351896192

約数和(自身を除く): 2361421252

約数列:

[1, 2, 4, 5, 10, 20, 37, 73, 74, 146, 148, 185, 292, 365, 370, 730, 740, 1460, 2701, 5402, 10804, 13505, 27010, 36847, 54020, 73694, 147388, 184235, 368470, 736940, 1363339, 2689831, 2726678, 5379662, 5453356, 6816695, 10759324, 13449155, 13633390, 26898310, 27266780, 53796620, 99523747, 199047494, 398094988, 497618735, 995237470, 1990474940]

約数ペア:

[(1, 1990474940), (2, 995237470), (4, 497618735), (5, 398094988), (10, 199047494), (20, 99523747), (37, 53796620), (73, 27266780), (74, 26898310), (146, 13633390), (148, 13449155), (185, 10759324), (292, 6816695), (365, 5453356), (370, 5379662), (730, 2726678), (740, 2689831), (1460, 1363339), (2701, 736940), (5402, 368470), (10804, 184235), (13505, 147388), (27010, 73694), (36847, 54020)]