13265720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{263}}^1$

素因数の和:384

約数の個数: 64

約数和(自身を含む): 32598720

約数和(自身を除く): 19333000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 97, 104, 130, 194, 260, 263, 388, 485, 520, 526, 776, 970, 1052, 1261, 1315, 1940, 2104, 2522, 2630, 3419, 3880, 5044, 5260, 6305, 6838, 10088, 10520, 12610, 13676, 17095, 25220, 25511, 27352, 34190, 50440, 51022, 68380, 102044, 127555, 136760, 204088, 255110, 331643, 510220, 663286, 1020440, 1326572, 1658215, 2653144, 3316430, 6632860, 13265720]

約数ペア:

[(1, 13265720), (2, 6632860), (4, 3316430), (5, 2653144), (8, 1658215), (10, 1326572), (13, 1020440), (20, 663286), (26, 510220), (40, 331643), (52, 255110), (65, 204088), (97, 136760), (104, 127555), (130, 102044), (194, 68380), (260, 51022), (263, 50440), (388, 34190), (485, 27352), (520, 25511), (526, 25220), (776, 17095), (970, 13676), (1052, 12610), (1261, 10520), (1315, 10088), (1940, 6838), (2104, 6305), (2522, 5260), (2630, 5044), (3419, 3880)]