64752440

素因数分解:

$2^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{5273}}^1$

素因数の和:5591

約数の個数: 32

約数和(自身を含む): 146195280

約数和(自身を除く): 81442840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 307, 614, 1228, 1535, 2456, 3070, 5273, 6140, 10546, 12280, 21092, 26365, 42184, 52730, 105460, 210920, 1618811, 3237622, 6475244, 8094055, 12950488, 16188110, 32376220, 64752440]

約数ペア:

[(1, 64752440), (2, 32376220), (4, 16188110), (5, 12950488), (8, 8094055), (10, 6475244), (20, 3237622), (40, 1618811), (307, 210920), (614, 105460), (1228, 52730), (1535, 42184), (2456, 26365), (3070, 21092), (5273, 12280), (6140, 10546)]