244640

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1$

素因数の和:165

約数の個数: 48

約数和(自身を含む): 635040

約数和(自身を除く): 390400

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 139, 160, 176, 220, 278, 352, 440, 556, 695, 880, 1112, 1390, 1529, 1760, 2224, 2780, 3058, 4448, 5560, 6116, 7645, 11120, 12232, 15290, 22240, 24464, 30580, 48928, 61160, 122320, 244640]

約数ペア:

[(1, 244640), (2, 122320), (4, 61160), (5, 48928), (8, 30580), (10, 24464), (11, 22240), (16, 15290), (20, 12232), (22, 11120), (32, 7645), (40, 6116), (44, 5560), (55, 4448), (80, 3058), (88, 2780), (110, 2224), (139, 1760), (160, 1529), (176, 1390), (220, 1112), (278, 880), (352, 695), (440, 556)]