18852560

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:268

約数の個数: 80

約数和(自身を含む): 47020800

約数和(自身を除く): 28168240

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 79, 80, 95, 152, 157, 158, 190, 304, 314, 316, 380, 395, 628, 632, 760, 785, 790, 1256, 1264, 1501, 1520, 1570, 1580, 2512, 2983, 3002, 3140, 3160, 5966, 6004, 6280, 6320, 7505, 11932, 12008, 12403, 12560, 14915, 15010, 23864, 24016, 24806, 29830, 30020, 47728, 49612, 59660, 60040, 62015, 99224, 119320, 120080, 124030, 198448, 235657, 238640, 248060, 471314, 496120, 942628, 992240, 1178285, 1885256, 2356570, 3770512, 4713140, 9426280, 18852560]

約数ペア:

[(1, 18852560), (2, 9426280), (4, 4713140), (5, 3770512), (8, 2356570), (10, 1885256), (16, 1178285), (19, 992240), (20, 942628), (38, 496120), (40, 471314), (76, 248060), (79, 238640), (80, 235657), (95, 198448), (152, 124030), (157, 120080), (158, 119320), (190, 99224), (304, 62015), (314, 60040), (316, 59660), (380, 49612), (395, 47728), (628, 30020), (632, 29830), (760, 24806), (785, 24016), (790, 23864), (1256, 15010), (1264, 14915), (1501, 12560), (1520, 12403), (1570, 12008), (1580, 11932), (2512, 7505), (2983, 6320), (3002, 6280), (3140, 6004), (3160, 5966)]