80461640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{4289}}^1$

素因数の和:4374

約数の個数: 64

約数和(自身を含む): 210038400

約数和(自身を除く): 129576760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 67, 70, 134, 140, 268, 280, 335, 469, 536, 670, 938, 1340, 1876, 2345, 2680, 3752, 4289, 4690, 8578, 9380, 17156, 18760, 21445, 30023, 34312, 42890, 60046, 85780, 120092, 150115, 171560, 240184, 287363, 300230, 574726, 600460, 1149452, 1200920, 1436815, 2011541, 2298904, 2873630, 4023082, 5747260, 8046164, 10057705, 11494520, 16092328, 20115410, 40230820, 80461640]

約数ペア:

[(1, 80461640), (2, 40230820), (4, 20115410), (5, 16092328), (7, 11494520), (8, 10057705), (10, 8046164), (14, 5747260), (20, 4023082), (28, 2873630), (35, 2298904), (40, 2011541), (56, 1436815), (67, 1200920), (70, 1149452), (134, 600460), (140, 574726), (268, 300230), (280, 287363), (335, 240184), (469, 171560), (536, 150115), (670, 120092), (938, 85780), (1340, 60046), (1876, 42890), (2345, 34312), (2680, 30023), (3752, 21445), (4289, 18760), (4690, 17156), (8578, 9380)]