87842920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{1103}}^1$

素因数の和:1306

約数の個数: 64

約数和(自身を含む): 217002240

約数和(自身を除く): 129159320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 181, 220, 362, 440, 724, 905, 1103, 1448, 1810, 1991, 2206, 3620, 3982, 4412, 5515, 7240, 7964, 8824, 9955, 11030, 12133, 15928, 19910, 22060, 24266, 39820, 44120, 48532, 60665, 79640, 97064, 121330, 199643, 242660, 399286, 485320, 798572, 998215, 1597144, 1996430, 2196073, 3992860, 4392146, 7985720, 8784292, 10980365, 17568584, 21960730, 43921460, 87842920]

約数ペア:

[(1, 87842920), (2, 43921460), (4, 21960730), (5, 17568584), (8, 10980365), (10, 8784292), (11, 7985720), (20, 4392146), (22, 3992860), (40, 2196073), (44, 1996430), (55, 1597144), (88, 998215), (110, 798572), (181, 485320), (220, 399286), (362, 242660), (440, 199643), (724, 121330), (905, 97064), (1103, 79640), (1448, 60665), (1810, 48532), (1991, 44120), (2206, 39820), (3620, 24266), (3982, 22060), (4412, 19910), (5515, 15928), (7240, 12133), (7964, 11030), (8824, 9955)]