2221720

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{829}}^1$

素因数の和:907

約数の個数: 32

約数和(自身を含む): 5079600

約数和(自身を除く): 2857880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 829, 1340, 1658, 2680, 3316, 4145, 6632, 8290, 16580, 33160, 55543, 111086, 222172, 277715, 444344, 555430, 1110860, 2221720]

約数ペア:

[(1, 2221720), (2, 1110860), (4, 555430), (5, 444344), (8, 277715), (10, 222172), (20, 111086), (40, 55543), (67, 33160), (134, 16580), (268, 8290), (335, 6632), (536, 4145), (670, 3316), (829, 2680), (1340, 1658)]