19907440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1871}}^1$

素因数の和:1910

約数の個数: 80

約数和(自身を含む): 55710720

約数和(自身を除く): 35803280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 56, 70, 76, 80, 95, 112, 133, 140, 152, 190, 266, 280, 304, 380, 532, 560, 665, 760, 1064, 1330, 1520, 1871, 2128, 2660, 3742, 5320, 7484, 9355, 10640, 13097, 14968, 18710, 26194, 29936, 35549, 37420, 52388, 65485, 71098, 74840, 104776, 130970, 142196, 149680, 177745, 209552, 248843, 261940, 284392, 355490, 497686, 523880, 568784, 710980, 995372, 1047760, 1244215, 1421960, 1990744, 2488430, 2843920, 3981488, 4976860, 9953720, 19907440]

約数ペア:

[(1, 19907440), (2, 9953720), (4, 4976860), (5, 3981488), (7, 2843920), (8, 2488430), (10, 1990744), (14, 1421960), (16, 1244215), (19, 1047760), (20, 995372), (28, 710980), (35, 568784), (38, 523880), (40, 497686), (56, 355490), (70, 284392), (76, 261940), (80, 248843), (95, 209552), (112, 177745), (133, 149680), (140, 142196), (152, 130970), (190, 104776), (266, 74840), (280, 71098), (304, 65485), (380, 52388), (532, 37420), (560, 35549), (665, 29936), (760, 26194), (1064, 18710), (1330, 14968), (1520, 13097), (1871, 10640), (2128, 9355), (2660, 7484), (3742, 5320)]