20201363708

素因数分解:

$2^2\times {\mathrm{41}}^2\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{641}}^1$

素因数の和:879

約数の個数: 72

約数和(自身を含む): 37476904080

約数和(自身を除く): 17275540372

約数列:

[1, 2, 4, 41, 43, 82, 86, 109, 164, 172, 218, 436, 641, 1282, 1681, 1763, 2564, 3362, 3526, 4469, 4687, 6724, 7052, 8938, 9374, 17876, 18748, 26281, 27563, 52562, 55126, 69869, 72283, 105124, 110252, 139738, 144566, 183229, 192167, 279476, 289132, 366458, 384334, 732916, 768668, 1077521, 1130083, 2155042, 2260166, 2864629, 3004367, 4310084, 4520332, 5729258, 6008734, 7878847, 11458516, 12017468, 15757694, 31515388, 46333403, 92666806, 117449789, 123179047, 185333612, 234899578, 246358094, 469799156, 492716188, 5050340927, 10100681854, 20201363708]

約数ペア:

[(1, 20201363708), (2, 10100681854), (4, 5050340927), (41, 492716188), (43, 469799156), (82, 246358094), (86, 234899578), (109, 185333612), (164, 123179047), (172, 117449789), (218, 92666806), (436, 46333403), (641, 31515388), (1282, 15757694), (1681, 12017468), (1763, 11458516), (2564, 7878847), (3362, 6008734), (3526, 5729258), (4469, 4520332), (4687, 4310084), (6724, 3004367), (7052, 2864629), (8938, 2260166), (9374, 2155042), (17876, 1130083), (18748, 1077521), (26281, 768668), (27563, 732916), (52562, 384334), (55126, 366458), (69869, 289132), (72283, 279476), (105124, 192167), (110252, 183229), (139738, 144566)]