19172040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{811}}^1$

素因数の和:1022

約数の個数: 64

約数和(自身を含む): 57879360

約数和(自身を除く): 38707320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 197, 394, 591, 788, 811, 985, 1182, 1576, 1622, 1970, 2364, 2433, 2955, 3244, 3940, 4055, 4728, 4866, 5910, 6488, 7880, 8110, 9732, 11820, 12165, 16220, 19464, 23640, 24330, 32440, 48660, 97320, 159767, 319534, 479301, 639068, 798835, 958602, 1278136, 1597670, 1917204, 2396505, 3195340, 3834408, 4793010, 6390680, 9586020, 19172040]

約数ペア:

[(1, 19172040), (2, 9586020), (3, 6390680), (4, 4793010), (5, 3834408), (6, 3195340), (8, 2396505), (10, 1917204), (12, 1597670), (15, 1278136), (20, 958602), (24, 798835), (30, 639068), (40, 479301), (60, 319534), (120, 159767), (197, 97320), (394, 48660), (591, 32440), (788, 24330), (811, 23640), (985, 19464), (1182, 16220), (1576, 12165), (1622, 11820), (1970, 9732), (2364, 8110), (2433, 7880), (2955, 6488), (3244, 5910), (3940, 4866), (4055, 4728)]