18720320

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{3079}}^1$

素因数の和:3115

約数の個数: 56

約数和(自身を含む): 46939200

約数和(自身を除く): 28218880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 152, 160, 190, 304, 320, 380, 608, 760, 1216, 1520, 3040, 3079, 6080, 6158, 12316, 15395, 24632, 30790, 49264, 58501, 61580, 98528, 117002, 123160, 197056, 234004, 246320, 292505, 468008, 492640, 585010, 936016, 985280, 1170020, 1872032, 2340040, 3744064, 4680080, 9360160, 18720320]

約数ペア:

[(1, 18720320), (2, 9360160), (4, 4680080), (5, 3744064), (8, 2340040), (10, 1872032), (16, 1170020), (19, 985280), (20, 936016), (32, 585010), (38, 492640), (40, 468008), (64, 292505), (76, 246320), (80, 234004), (95, 197056), (152, 123160), (160, 117002), (190, 98528), (304, 61580), (320, 58501), (380, 49264), (608, 30790), (760, 24632), (1216, 15395), (1520, 12316), (3040, 6158), (3079, 6080)]