420120

素因数分解:

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

素因数の和:409

約数の個数: 64

約数和(自身を含む): 1404000

約数和(自身を除く): 983880

約数列:

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

約数ペア:

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