138315877

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 180576000

約数和(自身を除く): 42260123

約数列:

[1, 7, 19, 29, 47, 49, 109, 133, 203, 329, 551, 763, 893, 931, 1363, 1421, 2071, 2303, 3161, 3857, 5123, 5341, 6251, 9541, 14497, 22127, 25897, 26999, 35861, 43757, 60059, 66787, 97337, 101479, 148567, 154889, 181279, 251027, 420413, 681359, 1039969, 1268953, 2822773, 2942891, 4769513, 7279783, 19759411, 138315877]

約数ペア:

[(1, 138315877), (7, 19759411), (19, 7279783), (29, 4769513), (47, 2942891), (49, 2822773), (109, 1268953), (133, 1039969), (203, 681359), (329, 420413), (551, 251027), (763, 181279), (893, 154889), (931, 148567), (1363, 101479), (1421, 97337), (2071, 66787), (2303, 60059), (3161, 43757), (3857, 35861), (5123, 26999), (5341, 25897), (6251, 22127), (9541, 14497)]