20872080

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{3221}}^1$

素因数の和:3246

約数の個数: 100

約数和(自身を含む): 72514332

約数和(自身を除く): 51642252

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, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 270, 324, 360, 405, 432, 540, 648, 720, 810, 1080, 1296, 1620, 2160, 3221, 3240, 6442, 6480, 9663, 12884, 16105, 19326, 25768, 28989, 32210, 38652, 48315, 51536, 57978, 64420, 77304, 86967, 96630, 115956, 128840, 144945, 154608, 173934, 193260, 231912, 257680, 260901, 289890, 347868, 386520, 434835, 463824, 521802, 579780, 695736, 773040, 869670, 1043604, 1159560, 1304505, 1391472, 1739340, 2087208, 2319120, 2609010, 3478680, 4174416, 5218020, 6957360, 10436040, 20872080]

約数ペア:

[(1, 20872080), (2, 10436040), (3, 6957360), (4, 5218020), (5, 4174416), (6, 3478680), (8, 2609010), (9, 2319120), (10, 2087208), (12, 1739340), (15, 1391472), (16, 1304505), (18, 1159560), (20, 1043604), (24, 869670), (27, 773040), (30, 695736), (36, 579780), (40, 521802), (45, 463824), (48, 434835), (54, 386520), (60, 347868), (72, 289890), (80, 260901), (81, 257680), (90, 231912), (108, 193260), (120, 173934), (135, 154608), (144, 144945), (162, 128840), (180, 115956), (216, 96630), (240, 86967), (270, 77304), (324, 64420), (360, 57978), (405, 51536), (432, 48315), (540, 38652), (648, 32210), (720, 28989), (810, 25768), (1080, 19326), (1296, 16105), (1620, 12884), (2160, 9663), (3221, 6480), (3240, 6442)]