8943340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{503}}^1$

素因数の和:646

約数の個数: 48

約数和(自身を含む): 21676032

約数和(自身を除く): 12732692

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 127, 140, 254, 503, 508, 635, 889, 1006, 1270, 1778, 2012, 2515, 2540, 3521, 3556, 4445, 5030, 7042, 8890, 10060, 14084, 17605, 17780, 35210, 63881, 70420, 127762, 255524, 319405, 447167, 638810, 894334, 1277620, 1788668, 2235835, 4471670, 8943340]

約数ペア:

[(1, 8943340), (2, 4471670), (4, 2235835), (5, 1788668), (7, 1277620), (10, 894334), (14, 638810), (20, 447167), (28, 319405), (35, 255524), (70, 127762), (127, 70420), (140, 63881), (254, 35210), (503, 17780), (508, 17605), (635, 14084), (889, 10060), (1006, 8890), (1270, 7042), (1778, 5030), (2012, 4445), (2515, 3556), (2540, 3521)]