1638220888

素因数分解:

$2^3\times {\mathrm{19}}^2\times {\mathrm{179}}^1\times {\mathrm{3169}}^1$

素因数の和:3392

約数の個数: 48

約数和(自身を含む): 3260979000

約数和(自身を除く): 1622758112

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 179, 358, 361, 716, 722, 1432, 1444, 2888, 3169, 3401, 6338, 6802, 12676, 13604, 25352, 27208, 60211, 64619, 120422, 129238, 240844, 258476, 481688, 516952, 567251, 1134502, 1144009, 2269004, 2288018, 4538008, 4576036, 9152072, 10777769, 21555538, 43111076, 86222152, 204777611, 409555222, 819110444, 1638220888]

約数ペア:

[(1, 1638220888), (2, 819110444), (4, 409555222), (8, 204777611), (19, 86222152), (38, 43111076), (76, 21555538), (152, 10777769), (179, 9152072), (358, 4576036), (361, 4538008), (716, 2288018), (722, 2269004), (1432, 1144009), (1444, 1134502), (2888, 567251), (3169, 516952), (3401, 481688), (6338, 258476), (6802, 240844), (12676, 129238), (13604, 120422), (25352, 64619), (27208, 60211)]