28270220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1$

素因数の和:231

約数の個数: 96

約数和(自身を含む): 69866496

約数和(自身を除く): 41596276

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 37, 44, 46, 55, 74, 92, 110, 115, 148, 151, 185, 220, 230, 253, 302, 370, 407, 460, 506, 604, 740, 755, 814, 851, 1012, 1265, 1510, 1628, 1661, 1702, 2035, 2530, 3020, 3322, 3404, 3473, 4070, 4255, 5060, 5587, 6644, 6946, 8140, 8305, 8510, 9361, 11174, 13892, 16610, 17020, 17365, 18722, 22348, 27935, 33220, 34730, 37444, 38203, 46805, 55870, 61457, 69460, 76406, 93610, 111740, 122914, 128501, 152812, 187220, 191015, 245828, 257002, 307285, 382030, 514004, 614570, 642505, 764060, 1229140, 1285010, 1413511, 2570020, 2827022, 5654044, 7067555, 14135110, 28270220]

約数ペア:

[(1, 28270220), (2, 14135110), (4, 7067555), (5, 5654044), (10, 2827022), (11, 2570020), (20, 1413511), (22, 1285010), (23, 1229140), (37, 764060), (44, 642505), (46, 614570), (55, 514004), (74, 382030), (92, 307285), (110, 257002), (115, 245828), (148, 191015), (151, 187220), (185, 152812), (220, 128501), (230, 122914), (253, 111740), (302, 93610), (370, 76406), (407, 69460), (460, 61457), (506, 55870), (604, 46805), (740, 38203), (755, 37444), (814, 34730), (851, 33220), (1012, 27935), (1265, 22348), (1510, 18722), (1628, 17365), (1661, 17020), (1702, 16610), (2035, 13892), (2530, 11174), (3020, 9361), (3322, 8510), (3404, 8305), (3473, 8140), (4070, 6946), (4255, 6644), (5060, 5587)]