56491720

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{107}}^1\times {\mathrm{197}}^1$

素因数の和:382

約数の個数: 64

約数和(自身を含む): 130870080

約数和(自身を除く): 74378360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 107, 134, 197, 214, 268, 335, 394, 428, 535, 536, 670, 788, 856, 985, 1070, 1340, 1576, 1970, 2140, 2680, 3940, 4280, 7169, 7880, 13199, 14338, 21079, 26398, 28676, 35845, 42158, 52796, 57352, 65995, 71690, 84316, 105395, 105592, 131990, 143380, 168632, 210790, 263980, 286760, 421580, 527960, 843160, 1412293, 2824586, 5649172, 7061465, 11298344, 14122930, 28245860, 56491720]

約数ペア:

[(1, 56491720), (2, 28245860), (4, 14122930), (5, 11298344), (8, 7061465), (10, 5649172), (20, 2824586), (40, 1412293), (67, 843160), (107, 527960), (134, 421580), (197, 286760), (214, 263980), (268, 210790), (335, 168632), (394, 143380), (428, 131990), (535, 105592), (536, 105395), (670, 84316), (788, 71690), (856, 65995), (985, 57352), (1070, 52796), (1340, 42158), (1576, 35845), (1970, 28676), (2140, 26398), (2680, 21079), (3940, 14338), (4280, 13199), (7169, 7880)]