19639440

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{27277}}^1$

素因数の和:27296

約数の個数: 60

約数和(自身を含む): 65958204

約数和(自身を除く): 46318764

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, 27277, 54554, 81831, 109108, 136385, 163662, 218216, 245493, 272770, 327324, 409155, 436432, 490986, 545540, 654648, 818310, 981972, 1091080, 1227465, 1309296, 1636620, 1963944, 2182160, 2454930, 3273240, 3927888, 4909860, 6546480, 9819720, 19639440]

約数ペア:

[(1, 19639440), (2, 9819720), (3, 6546480), (4, 4909860), (5, 3927888), (6, 3273240), (8, 2454930), (9, 2182160), (10, 1963944), (12, 1636620), (15, 1309296), (16, 1227465), (18, 1091080), (20, 981972), (24, 818310), (30, 654648), (36, 545540), (40, 490986), (45, 436432), (48, 409155), (60, 327324), (72, 272770), (80, 245493), (90, 218216), (120, 163662), (144, 136385), (180, 109108), (240, 81831), (360, 54554), (720, 27277)]