28241620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1$

素因数の和:193

約数の個数: 96

約数和(自身を含む): 69092352

約数和(自身を除く): 40850732

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 41, 44, 55, 62, 82, 101, 110, 124, 155, 164, 202, 205, 220, 310, 341, 404, 410, 451, 505, 620, 682, 820, 902, 1010, 1111, 1271, 1364, 1705, 1804, 2020, 2222, 2255, 2542, 3131, 3410, 4141, 4444, 4510, 5084, 5555, 6262, 6355, 6820, 8282, 9020, 11110, 12524, 12710, 13981, 15655, 16564, 20705, 22220, 25420, 27962, 31310, 34441, 41410, 45551, 55924, 62620, 68882, 69905, 82820, 91102, 128371, 137764, 139810, 172205, 182204, 227755, 256742, 279620, 344410, 455510, 513484, 641855, 688820, 911020, 1283710, 1412081, 2567420, 2824162, 5648324, 7060405, 14120810, 28241620]

約数ペア:

[(1, 28241620), (2, 14120810), (4, 7060405), (5, 5648324), (10, 2824162), (11, 2567420), (20, 1412081), (22, 1283710), (31, 911020), (41, 688820), (44, 641855), (55, 513484), (62, 455510), (82, 344410), (101, 279620), (110, 256742), (124, 227755), (155, 182204), (164, 172205), (202, 139810), (205, 137764), (220, 128371), (310, 91102), (341, 82820), (404, 69905), (410, 68882), (451, 62620), (505, 55924), (620, 45551), (682, 41410), (820, 34441), (902, 31310), (1010, 27962), (1111, 25420), (1271, 22220), (1364, 20705), (1705, 16564), (1804, 15655), (2020, 13981), (2222, 12710), (2255, 12524), (2542, 11110), (3131, 9020), (3410, 8282), (4141, 6820), (4444, 6355), (4510, 6262), (5084, 5555)]