7775020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{599}}^1$

素因数の和:678

約数の個数: 48

約数和(自身を含む): 18144000

約数和(自身を除く): 10368980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 59, 110, 118, 220, 236, 295, 590, 599, 649, 1180, 1198, 1298, 2396, 2596, 2995, 3245, 5990, 6490, 6589, 11980, 12980, 13178, 26356, 32945, 35341, 65890, 70682, 131780, 141364, 176705, 353410, 388751, 706820, 777502, 1555004, 1943755, 3887510, 7775020]

約数ペア:

[(1, 7775020), (2, 3887510), (4, 1943755), (5, 1555004), (10, 777502), (11, 706820), (20, 388751), (22, 353410), (44, 176705), (55, 141364), (59, 131780), (110, 70682), (118, 65890), (220, 35341), (236, 32945), (295, 26356), (590, 13178), (599, 12980), (649, 11980), (1180, 6589), (1198, 6490), (1298, 5990), (2396, 3245), (2596, 2995)]