17964880

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{223}}^1$

素因数の和:308

約数の個数: 80

約数和(自身を含む): 44997120

約数和(自身を除く): 27032240

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 53, 76, 80, 95, 106, 152, 190, 212, 223, 265, 304, 380, 424, 446, 530, 760, 848, 892, 1007, 1060, 1115, 1520, 1784, 2014, 2120, 2230, 3568, 4028, 4237, 4240, 4460, 5035, 8056, 8474, 8920, 10070, 11819, 16112, 16948, 17840, 20140, 21185, 23638, 33896, 40280, 42370, 47276, 59095, 67792, 80560, 84740, 94552, 118190, 169480, 189104, 224561, 236380, 338960, 449122, 472760, 898244, 945520, 1122805, 1796488, 2245610, 3592976, 4491220, 8982440, 17964880]

約数ペア:

[(1, 17964880), (2, 8982440), (4, 4491220), (5, 3592976), (8, 2245610), (10, 1796488), (16, 1122805), (19, 945520), (20, 898244), (38, 472760), (40, 449122), (53, 338960), (76, 236380), (80, 224561), (95, 189104), (106, 169480), (152, 118190), (190, 94552), (212, 84740), (223, 80560), (265, 67792), (304, 59095), (380, 47276), (424, 42370), (446, 40280), (530, 33896), (760, 23638), (848, 21185), (892, 20140), (1007, 17840), (1060, 16948), (1115, 16112), (1520, 11819), (1784, 10070), (2014, 8920), (2120, 8474), (2230, 8056), (3568, 5035), (4028, 4460), (4237, 4240)]