39983120

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{197}}^1$

素因数の和:312

約数の個数: 80

約数和(自身を含む): 97225920

約数和(自身を除く): 57242800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 59, 80, 86, 118, 172, 197, 215, 236, 295, 344, 394, 430, 472, 590, 688, 788, 860, 944, 985, 1180, 1576, 1720, 1970, 2360, 2537, 3152, 3440, 3940, 4720, 5074, 7880, 8471, 10148, 11623, 12685, 15760, 16942, 20296, 23246, 25370, 33884, 40592, 42355, 46492, 50740, 58115, 67768, 84710, 92984, 101480, 116230, 135536, 169420, 185968, 202960, 232460, 338840, 464920, 499789, 677680, 929840, 999578, 1999156, 2498945, 3998312, 4997890, 7996624, 9995780, 19991560, 39983120]

約数ペア:

[(1, 39983120), (2, 19991560), (4, 9995780), (5, 7996624), (8, 4997890), (10, 3998312), (16, 2498945), (20, 1999156), (40, 999578), (43, 929840), (59, 677680), (80, 499789), (86, 464920), (118, 338840), (172, 232460), (197, 202960), (215, 185968), (236, 169420), (295, 135536), (344, 116230), (394, 101480), (430, 92984), (472, 84710), (590, 67768), (688, 58115), (788, 50740), (860, 46492), (944, 42355), (985, 40592), (1180, 33884), (1576, 25370), (1720, 23246), (1970, 20296), (2360, 16942), (2537, 15760), (3152, 12685), (3440, 11623), (3940, 10148), (4720, 8471), (5074, 7880)]