54388640

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{17891}}^1$

素因数の和:17925

約数の個数: 48

約数和(自身を含む): 135263520

約数和(自身を除く): 80874880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 17891, 35782, 71564, 89455, 143128, 178910, 286256, 339929, 357820, 572512, 679858, 715640, 1359716, 1431280, 1699645, 2719432, 2862560, 3399290, 5438864, 6798580, 10877728, 13597160, 27194320, 54388640]

約数ペア:

[(1, 54388640), (2, 27194320), (4, 13597160), (5, 10877728), (8, 6798580), (10, 5438864), (16, 3399290), (19, 2862560), (20, 2719432), (32, 1699645), (38, 1431280), (40, 1359716), (76, 715640), (80, 679858), (95, 572512), (152, 357820), (160, 339929), (190, 286256), (304, 178910), (380, 143128), (608, 89455), (760, 71564), (1520, 35782), (3040, 17891)]