64915628

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{251}}^1$

素因数の和:398

約数の個数: 48

約数和(自身を含む): 124467840

約数和(自身を除く): 59552212

約数列:

[1, 2, 4, 19, 38, 41, 76, 82, 83, 164, 166, 251, 332, 502, 779, 1004, 1558, 1577, 3116, 3154, 3403, 4769, 6308, 6806, 9538, 10291, 13612, 19076, 20582, 20833, 41164, 41666, 64657, 83332, 129314, 195529, 258628, 391058, 395827, 782116, 791654, 854153, 1583308, 1708306, 3416612, 16228907, 32457814, 64915628]

約数ペア:

[(1, 64915628), (2, 32457814), (4, 16228907), (19, 3416612), (38, 1708306), (41, 1583308), (76, 854153), (82, 791654), (83, 782116), (164, 395827), (166, 391058), (251, 258628), (332, 195529), (502, 129314), (779, 83332), (1004, 64657), (1558, 41666), (1577, 41164), (3116, 20833), (3154, 20582), (3403, 19076), (4769, 13612), (6308, 10291), (6806, 9538)]