20802440

素因数分解:

$2^3\times 5^1\times {\mathrm{593}}^1\times {\mathrm{877}}^1$

素因数の和:1481

約数の個数: 32

約数和(自身を含む): 46937880

約数和(自身を除く): 26135440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 593, 877, 1186, 1754, 2372, 2965, 3508, 4385, 4744, 5930, 7016, 8770, 11860, 17540, 23720, 35080, 520061, 1040122, 2080244, 2600305, 4160488, 5200610, 10401220, 20802440]

約数ペア:

[(1, 20802440), (2, 10401220), (4, 5200610), (5, 4160488), (8, 2600305), (10, 2080244), (20, 1040122), (40, 520061), (593, 35080), (877, 23720), (1186, 17540), (1754, 11860), (2372, 8770), (2965, 7016), (3508, 5930), (4385, 4744)]