81725040

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{509}}^1$

素因数の和:751

約数の個数: 120

約数和(自身を含む): 276232320

約数和(自身を除く): 194507280

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, 223, 240, 360, 446, 509, 669, 720, 892, 1018, 1115, 1338, 1527, 1784, 2007, 2036, 2230, 2545, 2676, 3054, 3345, 3568, 4014, 4072, 4460, 4581, 5090, 5352, 6108, 6690, 7635, 8028, 8144, 8920, 9162, 10035, 10180, 10704, 12216, 13380, 15270, 16056, 17840, 18324, 20070, 20360, 22905, 24432, 26760, 30540, 32112, 36648, 40140, 40720, 45810, 53520, 61080, 73296, 80280, 91620, 113507, 122160, 160560, 183240, 227014, 340521, 366480, 454028, 567535, 681042, 908056, 1021563, 1135070, 1362084, 1702605, 1816112, 2043126, 2270140, 2724168, 3405210, 4086252, 4540280, 5107815, 5448336, 6810420, 8172504, 9080560, 10215630, 13620840, 16345008, 20431260, 27241680, 40862520, 81725040]

約数ペア:

[(1, 81725040), (2, 40862520), (3, 27241680), (4, 20431260), (5, 16345008), (6, 13620840), (8, 10215630), (9, 9080560), (10, 8172504), (12, 6810420), (15, 5448336), (16, 5107815), (18, 4540280), (20, 4086252), (24, 3405210), (30, 2724168), (36, 2270140), (40, 2043126), (45, 1816112), (48, 1702605), (60, 1362084), (72, 1135070), (80, 1021563), (90, 908056), (120, 681042), (144, 567535), (180, 454028), (223, 366480), (240, 340521), (360, 227014), (446, 183240), (509, 160560), (669, 122160), (720, 113507), (892, 91620), (1018, 80280), (1115, 73296), (1338, 61080), (1527, 53520), (1784, 45810), (2007, 40720), (2036, 40140), (2230, 36648), (2545, 32112), (2676, 30540), (3054, 26760), (3345, 24432), (3568, 22905), (4014, 20360), (4072, 20070), (4460, 18324), (4581, 17840), (5090, 16056), (5352, 15270), (6108, 13380), (6690, 12216), (7635, 10704), (8028, 10180), (8144, 10035), (8920, 9162)]