68653520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{263}}^1$

素因数の和:540

約数の個数: 80

約数和(自身を含む): 173238912

約数和(自身を除く): 104585392

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 251, 260, 263, 502, 520, 526, 1004, 1040, 1052, 1255, 1315, 2008, 2104, 2510, 2630, 3263, 3419, 4016, 4208, 5020, 5260, 6526, 6838, 10040, 10520, 13052, 13676, 16315, 17095, 20080, 21040, 26104, 27352, 32630, 34190, 52208, 54704, 65260, 66013, 68380, 130520, 132026, 136760, 261040, 264052, 273520, 330065, 528104, 660130, 858169, 1056208, 1320260, 1716338, 2640520, 3432676, 4290845, 5281040, 6865352, 8581690, 13730704, 17163380, 34326760, 68653520]

約数ペア:

[(1, 68653520), (2, 34326760), (4, 17163380), (5, 13730704), (8, 8581690), (10, 6865352), (13, 5281040), (16, 4290845), (20, 3432676), (26, 2640520), (40, 1716338), (52, 1320260), (65, 1056208), (80, 858169), (104, 660130), (130, 528104), (208, 330065), (251, 273520), (260, 264052), (263, 261040), (502, 136760), (520, 132026), (526, 130520), (1004, 68380), (1040, 66013), (1052, 65260), (1255, 54704), (1315, 52208), (2008, 34190), (2104, 32630), (2510, 27352), (2630, 26104), (3263, 21040), (3419, 20080), (4016, 17095), (4208, 16315), (5020, 13676), (5260, 13052), (6526, 10520), (6838, 10040)]