80491040

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{71867}}^1$

素因数の和:71889

約数の個数: 48

約数和(自身を含む): 217328832

約数和(自身を除く): 136837792

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 71867, 143734, 287468, 359335, 503069, 574936, 718670, 1006138, 1149872, 1437340, 2012276, 2299744, 2515345, 2874680, 4024552, 5030690, 5749360, 8049104, 10061380, 11498720, 16098208, 20122760, 40245520, 80491040]

約数ペア:

[(1, 80491040), (2, 40245520), (4, 20122760), (5, 16098208), (7, 11498720), (8, 10061380), (10, 8049104), (14, 5749360), (16, 5030690), (20, 4024552), (28, 2874680), (32, 2515345), (35, 2299744), (40, 2012276), (56, 1437340), (70, 1149872), (80, 1006138), (112, 718670), (140, 574936), (160, 503069), (224, 359335), (280, 287468), (560, 143734), (1120, 71867)]