291220960

素因数分解:

$2^5\times 5^1\times {\mathrm{389}}^1\times {\mathrm{4679}}^1$

素因数の和:5083

約数の個数: 48

約数和(自身を含む): 689925600

約数和(自身を除く): 398704640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 389, 778, 1556, 1945, 3112, 3890, 4679, 6224, 7780, 9358, 12448, 15560, 18716, 23395, 31120, 37432, 46790, 62240, 74864, 93580, 149728, 187160, 374320, 748640, 1820131, 3640262, 7280524, 9100655, 14561048, 18201310, 29122096, 36402620, 58244192, 72805240, 145610480, 291220960]

約数ペア:

[(1, 291220960), (2, 145610480), (4, 72805240), (5, 58244192), (8, 36402620), (10, 29122096), (16, 18201310), (20, 14561048), (32, 9100655), (40, 7280524), (80, 3640262), (160, 1820131), (389, 748640), (778, 374320), (1556, 187160), (1945, 149728), (3112, 93580), (3890, 74864), (4679, 62240), (6224, 46790), (7780, 37432), (9358, 31120), (12448, 23395), (15560, 18716)]