19992240

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{27767}}^1$

素因数の和:27786

約数の個数: 60

約数和(自身を含む): 67143024

約数和(自身を除く): 47150784

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 27767, 55534, 83301, 111068, 138835, 166602, 222136, 249903, 277670, 333204, 416505, 444272, 499806, 555340, 666408, 833010, 999612, 1110680, 1249515, 1332816, 1666020, 1999224, 2221360, 2499030, 3332040, 3998448, 4998060, 6664080, 9996120, 19992240]

約数ペア:

[(1, 19992240), (2, 9996120), (3, 6664080), (4, 4998060), (5, 3998448), (6, 3332040), (8, 2499030), (9, 2221360), (10, 1999224), (12, 1666020), (15, 1332816), (16, 1249515), (18, 1110680), (20, 999612), (24, 833010), (30, 666408), (36, 555340), (40, 499806), (45, 444272), (48, 416505), (60, 333204), (72, 277670), (80, 249903), (90, 222136), (120, 166602), (144, 138835), (180, 111068), (240, 83301), (360, 55534), (720, 27767)]