164640780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{4643}}^1$

素因数の和:4855

約数の個数: 72

約数和(自身を含む): 502053552

約数和(自身を除く): 337412772

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 197, 394, 591, 788, 985, 1182, 1773, 1970, 2364, 2955, 3546, 3940, 4643, 5910, 7092, 8865, 9286, 11820, 13929, 17730, 18572, 23215, 27858, 35460, 41787, 46430, 55716, 69645, 83574, 92860, 139290, 167148, 208935, 278580, 417870, 835740, 914671, 1829342, 2744013, 3658684, 4573355, 5488026, 8232039, 9146710, 10976052, 13720065, 16464078, 18293420, 27440130, 32928156, 41160195, 54880260, 82320390, 164640780]

約数ペア:

[(1, 164640780), (2, 82320390), (3, 54880260), (4, 41160195), (5, 32928156), (6, 27440130), (9, 18293420), (10, 16464078), (12, 13720065), (15, 10976052), (18, 9146710), (20, 8232039), (30, 5488026), (36, 4573355), (45, 3658684), (60, 2744013), (90, 1829342), (180, 914671), (197, 835740), (394, 417870), (591, 278580), (788, 208935), (985, 167148), (1182, 139290), (1773, 92860), (1970, 83574), (2364, 69645), (2955, 55716), (3546, 46430), (3940, 41787), (4643, 35460), (5910, 27858), (7092, 23215), (8865, 18572), (9286, 17730), (11820, 13929)]