77788280

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{5387}}^1$

素因数の和:5436

約数の個数: 48

約数和(自身を含む): 184754520

約数和(自身を除く): 106966240

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 361, 380, 722, 760, 1444, 1805, 2888, 3610, 5387, 7220, 10774, 14440, 21548, 26935, 43096, 53870, 102353, 107740, 204706, 215480, 409412, 511765, 818824, 1023530, 1944707, 2047060, 3889414, 4094120, 7778828, 9723535, 15557656, 19447070, 38894140, 77788280]

約数ペア:

[(1, 77788280), (2, 38894140), (4, 19447070), (5, 15557656), (8, 9723535), (10, 7778828), (19, 4094120), (20, 3889414), (38, 2047060), (40, 1944707), (76, 1023530), (95, 818824), (152, 511765), (190, 409412), (361, 215480), (380, 204706), (722, 107740), (760, 102353), (1444, 53870), (1805, 43096), (2888, 26935), (3610, 21548), (5387, 14440), (7220, 10774)]