66979640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{18401}}^1$

素因数の和:18432

約数の個数: 64

約数和(自身を含む): 185492160

約数和(自身を除く): 118512520

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 18401, 36802, 73604, 92005, 128807, 147208, 184010, 239213, 257614, 368020, 478426, 515228, 644035, 736040, 956852, 1030456, 1196065, 1288070, 1674491, 1913704, 2392130, 2576140, 3348982, 4784260, 5152280, 6697964, 8372455, 9568520, 13395928, 16744910, 33489820, 66979640]

約数ペア:

[(1, 66979640), (2, 33489820), (4, 16744910), (5, 13395928), (7, 9568520), (8, 8372455), (10, 6697964), (13, 5152280), (14, 4784260), (20, 3348982), (26, 2576140), (28, 2392130), (35, 1913704), (40, 1674491), (52, 1288070), (56, 1196065), (65, 1030456), (70, 956852), (91, 736040), (104, 644035), (130, 515228), (140, 478426), (182, 368020), (260, 257614), (280, 239213), (364, 184010), (455, 147208), (520, 128807), (728, 92005), (910, 73604), (1820, 36802), (3640, 18401)]