71818120

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{163223}}^1$

素因数の和:163245

約数の個数: 32

約数和(自身を含む): 176281920

約数和(自身を除く): 104463800

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 163223, 326446, 652892, 816115, 1305784, 1632230, 1795453, 3264460, 3590906, 6528920, 7181812, 8977265, 14363624, 17954530, 35909060, 71818120]

約数ペア:

[(1, 71818120), (2, 35909060), (4, 17954530), (5, 14363624), (8, 8977265), (10, 7181812), (11, 6528920), (20, 3590906), (22, 3264460), (40, 1795453), (44, 1632230), (55, 1305784), (88, 816115), (110, 652892), (220, 326446), (440, 163223)]