28500560

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{233}}^1$

素因数の和:396

約数の個数: 80

約数和(自身を含む): 73120320

約数和(自身を除く): 44619760

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 139, 176, 220, 233, 278, 440, 466, 556, 695, 880, 932, 1112, 1165, 1390, 1529, 1864, 2224, 2330, 2563, 2780, 3058, 3728, 4660, 5126, 5560, 6116, 7645, 9320, 10252, 11120, 12232, 12815, 15290, 18640, 20504, 24464, 25630, 30580, 32387, 41008, 51260, 61160, 64774, 102520, 122320, 129548, 161935, 205040, 259096, 323870, 356257, 518192, 647740, 712514, 1295480, 1425028, 1781285, 2590960, 2850056, 3562570, 5700112, 7125140, 14250280, 28500560]

約数ペア:

[(1, 28500560), (2, 14250280), (4, 7125140), (5, 5700112), (8, 3562570), (10, 2850056), (11, 2590960), (16, 1781285), (20, 1425028), (22, 1295480), (40, 712514), (44, 647740), (55, 518192), (80, 356257), (88, 323870), (110, 259096), (139, 205040), (176, 161935), (220, 129548), (233, 122320), (278, 102520), (440, 64774), (466, 61160), (556, 51260), (695, 41008), (880, 32387), (932, 30580), (1112, 25630), (1165, 24464), (1390, 20504), (1529, 18640), (1864, 15290), (2224, 12815), (2330, 12232), (2563, 11120), (2780, 10252), (3058, 9320), (3728, 7645), (4660, 6116), (5126, 5560)]