81479880

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{947}}^1$

素因数の和:1203

約数の個数: 96

約数和(自身を含む): 266198400

約数和(自身を除く): 184718520

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, 947, 956, 1195, 1434, 1894, 1912, 2151, 2390, 2841, 2868, 3585, 3788, 4302, 4735, 4780, 5682, 5736, 7170, 7576, 8523, 8604, 9470, 9560, 10755, 11364, 14205, 14340, 17046, 17208, 18940, 21510, 22728, 28410, 28680, 34092, 37880, 42615, 43020, 56820, 68184, 85230, 86040, 113640, 170460, 226333, 340920, 452666, 678999, 905332, 1131665, 1357998, 1810664, 2036997, 2263330, 2715996, 3394995, 4073994, 4526660, 5431992, 6789990, 8147988, 9053320, 10184985, 13579980, 16295976, 20369970, 27159960, 40739940, 81479880]

約数ペア:

[(1, 81479880), (2, 40739940), (3, 27159960), (4, 20369970), (5, 16295976), (6, 13579980), (8, 10184985), (9, 9053320), (10, 8147988), (12, 6789990), (15, 5431992), (18, 4526660), (20, 4073994), (24, 3394995), (30, 2715996), (36, 2263330), (40, 2036997), (45, 1810664), (60, 1357998), (72, 1131665), (90, 905332), (120, 678999), (180, 452666), (239, 340920), (360, 226333), (478, 170460), (717, 113640), (947, 86040), (956, 85230), (1195, 68184), (1434, 56820), (1894, 43020), (1912, 42615), (2151, 37880), (2390, 34092), (2841, 28680), (2868, 28410), (3585, 22728), (3788, 21510), (4302, 18940), (4735, 17208), (4780, 17046), (5682, 14340), (5736, 14205), (7170, 11364), (7576, 10755), (8523, 9560), (8604, 9470)]