51897680

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{197}}^1$

素因数の和:336

約数の個数: 80

約数和(自身を含む): 125951760

約数和(自身を除く): 74054080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 89, 148, 178, 185, 197, 296, 356, 370, 394, 445, 592, 712, 740, 788, 890, 985, 1424, 1480, 1576, 1780, 1970, 2960, 3152, 3293, 3560, 3940, 6586, 7120, 7289, 7880, 13172, 14578, 15760, 16465, 17533, 26344, 29156, 32930, 35066, 36445, 52688, 58312, 65860, 70132, 72890, 87665, 116624, 131720, 140264, 145780, 175330, 263440, 280528, 291560, 350660, 583120, 648721, 701320, 1297442, 1402640, 2594884, 3243605, 5189768, 6487210, 10379536, 12974420, 25948840, 51897680]

約数ペア:

[(1, 51897680), (2, 25948840), (4, 12974420), (5, 10379536), (8, 6487210), (10, 5189768), (16, 3243605), (20, 2594884), (37, 1402640), (40, 1297442), (74, 701320), (80, 648721), (89, 583120), (148, 350660), (178, 291560), (185, 280528), (197, 263440), (296, 175330), (356, 145780), (370, 140264), (394, 131720), (445, 116624), (592, 87665), (712, 72890), (740, 70132), (788, 65860), (890, 58312), (985, 52688), (1424, 36445), (1480, 35066), (1576, 32930), (1780, 29156), (1970, 26344), (2960, 17533), (3152, 16465), (3293, 15760), (3560, 14578), (3940, 13172), (6586, 7880), (7120, 7289)]