840240

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{389}}^1$

素因数の和:411

約数の個数: 80

約数和(自身を含む): 2901600

約数和(自身を除く): 2061360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 389, 432, 540, 720, 778, 1080, 1167, 1556, 1945, 2160, 2334, 3112, 3501, 3890, 4668, 5835, 6224, 7002, 7780, 9336, 10503, 11670, 14004, 15560, 17505, 18672, 21006, 23340, 28008, 31120, 35010, 42012, 46680, 52515, 56016, 70020, 84024, 93360, 105030, 140040, 168048, 210060, 280080, 420120, 840240]

約数ペア:

[(1, 840240), (2, 420120), (3, 280080), (4, 210060), (5, 168048), (6, 140040), (8, 105030), (9, 93360), (10, 84024), (12, 70020), (15, 56016), (16, 52515), (18, 46680), (20, 42012), (24, 35010), (27, 31120), (30, 28008), (36, 23340), (40, 21006), (45, 18672), (48, 17505), (54, 15560), (60, 14004), (72, 11670), (80, 10503), (90, 9336), (108, 7780), (120, 7002), (135, 6224), (144, 5835), (180, 4668), (216, 3890), (240, 3501), (270, 3112), (360, 2334), (389, 2160), (432, 1945), (540, 1556), (720, 1167), (778, 1080)]