51279640

素因数分解:

$2^3\times 5^1\times {\mathrm{683}}^1\times {\mathrm{1877}}^1$

素因数の和:2571

約数の個数: 32

約数和(自身を含む): 115609680

約数和(自身を除く): 64330040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 683, 1366, 1877, 2732, 3415, 3754, 5464, 6830, 7508, 9385, 13660, 15016, 18770, 27320, 37540, 75080, 1281991, 2563982, 5127964, 6409955, 10255928, 12819910, 25639820, 51279640]

約数ペア:

[(1, 51279640), (2, 25639820), (4, 12819910), (5, 10255928), (8, 6409955), (10, 5127964), (20, 2563982), (40, 1281991), (683, 75080), (1366, 37540), (1877, 27320), (2732, 18770), (3415, 15016), (3754, 13660), (5464, 9385), (6830, 7508)]