90164980

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{1777}}^1$

素因数の和:1888

約数の個数: 48

約数和(自身を含む): 197144640

約数和(自身を除く): 106979660

約数列:

[1, 2, 4, 5, 10, 20, 43, 59, 86, 118, 172, 215, 236, 295, 430, 590, 860, 1180, 1777, 2537, 3554, 5074, 7108, 8885, 10148, 12685, 17770, 25370, 35540, 50740, 76411, 104843, 152822, 209686, 305644, 382055, 419372, 524215, 764110, 1048430, 1528220, 2096860, 4508249, 9016498, 18032996, 22541245, 45082490, 90164980]

約数ペア:

[(1, 90164980), (2, 45082490), (4, 22541245), (5, 18032996), (10, 9016498), (20, 4508249), (43, 2096860), (59, 1528220), (86, 1048430), (118, 764110), (172, 524215), (215, 419372), (236, 382055), (295, 305644), (430, 209686), (590, 152822), (860, 104843), (1180, 76411), (1777, 50740), (2537, 35540), (3554, 25370), (5074, 17770), (7108, 12685), (8885, 10148)]