20380493084

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{3037}}^1\times {\mathrm{3929}}^1$

素因数の和:7038

約数の個数: 48

約数和(自身を含む): 41453388480

約数和(自身を除く): 21072895396

約数列:

[1, 2, 4, 7, 14, 28, 61, 122, 244, 427, 854, 1708, 3037, 3929, 6074, 7858, 12148, 15716, 21259, 27503, 42518, 55006, 85036, 110012, 185257, 239669, 370514, 479338, 741028, 958676, 1296799, 1677683, 2593598, 3355366, 5187196, 6710732, 11932373, 23864746, 47729492, 83526611, 167053222, 334106444, 727874753, 1455749506, 2911499012, 5095123271, 10190246542, 20380493084]

約数ペア:

[(1, 20380493084), (2, 10190246542), (4, 5095123271), (7, 2911499012), (14, 1455749506), (28, 727874753), (61, 334106444), (122, 167053222), (244, 83526611), (427, 47729492), (854, 23864746), (1708, 11932373), (3037, 6710732), (3929, 5187196), (6074, 3355366), (7858, 2593598), (12148, 1677683), (15716, 1296799), (21259, 958676), (27503, 741028), (42518, 479338), (55006, 370514), (85036, 239669), (110012, 185257)]