64122940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{6451}}^1$

素因数の和:6538

約数の個数: 48

約数和(自身を含む): 156086784

約数和(自身を除く): 91963844

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 6451, 9940, 12902, 25804, 32255, 45157, 64510, 90314, 129020, 180628, 225785, 451570, 458021, 903140, 916042, 1832084, 2290105, 3206147, 4580210, 6412294, 9160420, 12824588, 16030735, 32061470, 64122940]

約数ペア:

[(1, 64122940), (2, 32061470), (4, 16030735), (5, 12824588), (7, 9160420), (10, 6412294), (14, 4580210), (20, 3206147), (28, 2290105), (35, 1832084), (70, 916042), (71, 903140), (140, 458021), (142, 451570), (284, 225785), (355, 180628), (497, 129020), (710, 90314), (994, 64510), (1420, 45157), (1988, 32255), (2485, 25804), (4970, 12902), (6451, 9940)]