20268240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1069}}^1$

素因数の和:1164

約数の個数: 80

約数和(自身を含む): 63686400

約数和(自身を除く): 43418160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 79, 80, 120, 158, 237, 240, 316, 395, 474, 632, 790, 948, 1069, 1185, 1264, 1580, 1896, 2138, 2370, 3160, 3207, 3792, 4276, 4740, 5345, 6320, 6414, 8552, 9480, 10690, 12828, 16035, 17104, 18960, 21380, 25656, 32070, 42760, 51312, 64140, 84451, 85520, 128280, 168902, 253353, 256560, 337804, 422255, 506706, 675608, 844510, 1013412, 1266765, 1351216, 1689020, 2026824, 2533530, 3378040, 4053648, 5067060, 6756080, 10134120, 20268240]

約数ペア:

[(1, 20268240), (2, 10134120), (3, 6756080), (4, 5067060), (5, 4053648), (6, 3378040), (8, 2533530), (10, 2026824), (12, 1689020), (15, 1351216), (16, 1266765), (20, 1013412), (24, 844510), (30, 675608), (40, 506706), (48, 422255), (60, 337804), (79, 256560), (80, 253353), (120, 168902), (158, 128280), (237, 85520), (240, 84451), (316, 64140), (395, 51312), (474, 42760), (632, 32070), (790, 25656), (948, 21380), (1069, 18960), (1185, 17104), (1264, 16035), (1580, 12828), (1896, 10690), (2138, 9480), (2370, 8552), (3160, 6414), (3207, 6320), (3792, 5345), (4276, 4740)]