72945280

素因数分解:

$2^7\times 5^1\times {\mathrm{293}}^1\times {\mathrm{389}}^1$

素因数の和:701

約数の個数: 64

約数和(自身を含む): 175429800

約数和(自身を除く): 102484520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 293, 320, 389, 586, 640, 778, 1172, 1465, 1556, 1945, 2344, 2930, 3112, 3890, 4688, 5860, 6224, 7780, 9376, 11720, 12448, 15560, 18752, 23440, 24896, 31120, 37504, 46880, 49792, 62240, 93760, 113977, 124480, 187520, 227954, 248960, 455908, 569885, 911816, 1139770, 1823632, 2279540, 3647264, 4559080, 7294528, 9118160, 14589056, 18236320, 36472640, 72945280]

約数ペア:

[(1, 72945280), (2, 36472640), (4, 18236320), (5, 14589056), (8, 9118160), (10, 7294528), (16, 4559080), (20, 3647264), (32, 2279540), (40, 1823632), (64, 1139770), (80, 911816), (128, 569885), (160, 455908), (293, 248960), (320, 227954), (389, 187520), (586, 124480), (640, 113977), (778, 93760), (1172, 62240), (1465, 49792), (1556, 46880), (1945, 37504), (2344, 31120), (2930, 24896), (3112, 23440), (3890, 18752), (4688, 15560), (5860, 12448), (6224, 11720), (7780, 9376)]