255153280

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{20983}}^1$

素因数の和:21021

約数の個数: 64

約数和(自身を含む): 642110400

約数和(自身を除く): 386957120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 304, 320, 380, 608, 640, 760, 1216, 1520, 2432, 3040, 6080, 12160, 20983, 41966, 83932, 104915, 167864, 209830, 335728, 398677, 419660, 671456, 797354, 839320, 1342912, 1594708, 1678640, 1993385, 2685824, 3189416, 3357280, 3986770, 6378832, 6714560, 7973540, 12757664, 13429120, 15947080, 25515328, 31894160, 51030656, 63788320, 127576640, 255153280]

約数ペア:

[(1, 255153280), (2, 127576640), (4, 63788320), (5, 51030656), (8, 31894160), (10, 25515328), (16, 15947080), (19, 13429120), (20, 12757664), (32, 7973540), (38, 6714560), (40, 6378832), (64, 3986770), (76, 3357280), (80, 3189416), (95, 2685824), (128, 1993385), (152, 1678640), (160, 1594708), (190, 1342912), (304, 839320), (320, 797354), (380, 671456), (608, 419660), (640, 398677), (760, 335728), (1216, 209830), (1520, 167864), (2432, 104915), (3040, 83932), (6080, 41966), (12160, 20983)]