81514320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19979}}^1$

素因数の和:20012

約数の個数: 80

約数和(自身を含む): 267572160

約数和(自身を除く): 186057840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 80, 85, 102, 120, 136, 170, 204, 240, 255, 272, 340, 408, 510, 680, 816, 1020, 1360, 2040, 4080, 19979, 39958, 59937, 79916, 99895, 119874, 159832, 199790, 239748, 299685, 319664, 339643, 399580, 479496, 599370, 679286, 799160, 958992, 1018929, 1198740, 1358572, 1598320, 1698215, 2037858, 2397480, 2717144, 3396430, 4075716, 4794960, 5094645, 5434288, 6792860, 8151432, 10189290, 13585720, 16302864, 20378580, 27171440, 40757160, 81514320]

約数ペア:

[(1, 81514320), (2, 40757160), (3, 27171440), (4, 20378580), (5, 16302864), (6, 13585720), (8, 10189290), (10, 8151432), (12, 6792860), (15, 5434288), (16, 5094645), (17, 4794960), (20, 4075716), (24, 3396430), (30, 2717144), (34, 2397480), (40, 2037858), (48, 1698215), (51, 1598320), (60, 1358572), (68, 1198740), (80, 1018929), (85, 958992), (102, 799160), (120, 679286), (136, 599370), (170, 479496), (204, 399580), (240, 339643), (255, 319664), (272, 299685), (340, 239748), (408, 199790), (510, 159832), (680, 119874), (816, 99895), (1020, 79916), (1360, 59937), (2040, 39958), (4080, 19979)]