80359920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{111611}}^1$

素因数の和:111630

約数の個数: 60

約数和(自身を含む): 269877816

約数和(自身を除く): 189517896

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, 111611, 223222, 334833, 446444, 558055, 669666, 892888, 1004499, 1116110, 1339332, 1674165, 1785776, 2008998, 2232220, 2678664, 3348330, 4017996, 4464440, 5022495, 5357328, 6696660, 8035992, 8928880, 10044990, 13393320, 16071984, 20089980, 26786640, 40179960, 80359920]

約数ペア:

[(1, 80359920), (2, 40179960), (3, 26786640), (4, 20089980), (5, 16071984), (6, 13393320), (8, 10044990), (9, 8928880), (10, 8035992), (12, 6696660), (15, 5357328), (16, 5022495), (18, 4464440), (20, 4017996), (24, 3348330), (30, 2678664), (36, 2232220), (40, 2008998), (45, 1785776), (48, 1674165), (60, 1339332), (72, 1116110), (80, 1004499), (90, 892888), (120, 669666), (144, 558055), (180, 446444), (240, 334833), (360, 223222), (720, 111611)]