889405840

素因数分解:

$2^4\times 5^1\times {\mathrm{1801}}^1\times {\mathrm{6173}}^1$

素因数の和:7987

約数の個数: 40

約数和(自身を含む): 2069351928

約数和(自身を除く): 1179946088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1801, 3602, 6173, 7204, 9005, 12346, 14408, 18010, 24692, 28816, 30865, 36020, 49384, 61730, 72040, 98768, 123460, 144080, 246920, 493840, 11117573, 22235146, 44470292, 55587865, 88940584, 111175730, 177881168, 222351460, 444702920, 889405840]

約数ペア:

[(1, 889405840), (2, 444702920), (4, 222351460), (5, 177881168), (8, 111175730), (10, 88940584), (16, 55587865), (20, 44470292), (40, 22235146), (80, 11117573), (1801, 493840), (3602, 246920), (6173, 144080), (7204, 123460), (9005, 98768), (12346, 72040), (14408, 61730), (18010, 49384), (24692, 36020), (28816, 30865)]