278756240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{6301}}^1$

素因数の和:6400

約数の個数: 80

約数和(自身を含む): 750190080

約数和(自身を除く): 471433840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 79, 80, 112, 140, 158, 280, 316, 395, 553, 560, 632, 790, 1106, 1264, 1580, 2212, 2765, 3160, 4424, 5530, 6301, 6320, 8848, 11060, 12602, 22120, 25204, 31505, 44107, 44240, 50408, 63010, 88214, 100816, 126020, 176428, 220535, 252040, 352856, 441070, 497779, 504080, 705712, 882140, 995558, 1764280, 1991116, 2488895, 3484453, 3528560, 3982232, 4977790, 6968906, 7964464, 9955580, 13937812, 17422265, 19911160, 27875624, 34844530, 39822320, 55751248, 69689060, 139378120, 278756240]

約数ペア:

[(1, 278756240), (2, 139378120), (4, 69689060), (5, 55751248), (7, 39822320), (8, 34844530), (10, 27875624), (14, 19911160), (16, 17422265), (20, 13937812), (28, 9955580), (35, 7964464), (40, 6968906), (56, 4977790), (70, 3982232), (79, 3528560), (80, 3484453), (112, 2488895), (140, 1991116), (158, 1764280), (280, 995558), (316, 882140), (395, 705712), (553, 504080), (560, 497779), (632, 441070), (790, 352856), (1106, 252040), (1264, 220535), (1580, 176428), (2212, 126020), (2765, 100816), (3160, 88214), (4424, 63010), (5530, 50408), (6301, 44240), (6320, 44107), (8848, 31505), (11060, 25204), (12602, 22120)]