31157520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{659}}^1$

素因数の和:872

約数の個数: 80

約数和(自身を含む): 97225920

約数和(自身を除く): 66068400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 197, 240, 394, 591, 659, 788, 985, 1182, 1318, 1576, 1970, 1977, 2364, 2636, 2955, 3152, 3295, 3940, 3954, 4728, 5272, 5910, 6590, 7880, 7908, 9456, 9885, 10544, 11820, 13180, 15760, 15816, 19770, 23640, 26360, 31632, 39540, 47280, 52720, 79080, 129823, 158160, 259646, 389469, 519292, 649115, 778938, 1038584, 1298230, 1557876, 1947345, 2077168, 2596460, 3115752, 3894690, 5192920, 6231504, 7789380, 10385840, 15578760, 31157520]

約数ペア:

[(1, 31157520), (2, 15578760), (3, 10385840), (4, 7789380), (5, 6231504), (6, 5192920), (8, 3894690), (10, 3115752), (12, 2596460), (15, 2077168), (16, 1947345), (20, 1557876), (24, 1298230), (30, 1038584), (40, 778938), (48, 649115), (60, 519292), (80, 389469), (120, 259646), (197, 158160), (240, 129823), (394, 79080), (591, 52720), (659, 47280), (788, 39540), (985, 31632), (1182, 26360), (1318, 23640), (1576, 19770), (1970, 15816), (1977, 15760), (2364, 13180), (2636, 11820), (2955, 10544), (3152, 9885), (3295, 9456), (3940, 7908), (3954, 7880), (4728, 6590), (5272, 5910)]