81831161.000000000

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{1423}}^1$

素因数の和:1679

約数の個数: 96

約数和(自身を含む): 399859200

約数和(自身を除く): 277424280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 239, 360, 478, 717, 956, 1195, 1423, 1434, 1912, 2151, 2390, 2846, 2868, 3585, 4269, 4302, 4780, 5692, 5736, 7115, 7170, 8538, 8604, 9560, 10755, 11384, 12807, 14230, 14340, 17076, 17208, 21345, 21510, 25614, 28460, 28680, 34152, 42690, 43020, 51228, 56920, 64035, 85380, 86040, 102456, 128070, 170760, 256140, 340097, 512280, 680194, 1020291, 1360388, 1700485, 2040582, 2720776, 3060873, 3400970, 4081164, 5101455, 6121746, 6801940, 8162328, 10202910, 12243492, 13603880, 15304365, 20405820, 24486984, 30608730, 40811640, 61217460, 122434920]

約数ペア:

[(1, 122434920), (2, 61217460), (3, 40811640), (4, 30608730), (5, 24486984), (6, 20405820), (8, 15304365), (9, 13603880), (10, 12243492), (12, 10202910), (15, 8162328), (18, 6801940), (20, 6121746), (24, 5101455), (30, 4081164), (36, 3400970), (40, 3060873), (45, 2720776), (60, 2040582), (72, 1700485), (90, 1360388), (120, 1020291), (180, 680194), (239, 512280), (360, 340097), (478, 256140), (717, 170760), (956, 128070), (1195, 102456), (1423, 86040), (1434, 85380), (1912, 64035), (2151, 56920), (2390, 51228), (2846, 43020), (2868, 42690), (3585, 34152), (4269, 28680), (4302, 28460), (4780, 25614), (5692, 21510), (5736, 21345), (7115, 17208), (7170, 17076), (8538, 14340), (8604, 14230), (9560, 12807), (10755, 11384)]