198617840

素因数分解:

$2^4\times 5^1\times {\mathrm{113}}^1\times {\mathrm{127}}^1\times {\mathrm{173}}^1$

素因数の和:426

約数の個数: 80

約数和(自身を含む): 472255488

約数和(自身を除く): 273637648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 113, 127, 173, 226, 254, 346, 452, 508, 565, 635, 692, 865, 904, 1016, 1130, 1270, 1384, 1730, 1808, 2032, 2260, 2540, 2768, 3460, 4520, 5080, 6920, 9040, 10160, 13840, 14351, 19549, 21971, 28702, 39098, 43942, 57404, 71755, 78196, 87884, 97745, 109855, 114808, 143510, 156392, 175768, 195490, 219710, 229616, 287020, 312784, 351536, 390980, 439420, 574040, 781960, 878840, 1148080, 1563920, 1757680, 2482723, 4965446, 9930892, 12413615, 19861784, 24827230, 39723568, 49654460, 99308920, 198617840]

約数ペア:

[(1, 198617840), (2, 99308920), (4, 49654460), (5, 39723568), (8, 24827230), (10, 19861784), (16, 12413615), (20, 9930892), (40, 4965446), (80, 2482723), (113, 1757680), (127, 1563920), (173, 1148080), (226, 878840), (254, 781960), (346, 574040), (452, 439420), (508, 390980), (565, 351536), (635, 312784), (692, 287020), (865, 229616), (904, 219710), (1016, 195490), (1130, 175768), (1270, 156392), (1384, 143510), (1730, 114808), (1808, 109855), (2032, 97745), (2260, 87884), (2540, 78196), (2768, 71755), (3460, 57404), (4520, 43942), (5080, 39098), (6920, 28702), (9040, 21971), (10160, 19549), (13840, 14351)]