86996840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1979}}^1$

素因数の和:2154

約数の個数: 64

約数和(自身を含む): 225244800

約数和(自身を除く): 138247960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 157, 280, 314, 628, 785, 1099, 1256, 1570, 1979, 2198, 3140, 3958, 4396, 5495, 6280, 7916, 8792, 9895, 10990, 13853, 15832, 19790, 21980, 27706, 39580, 43960, 55412, 69265, 79160, 110824, 138530, 277060, 310703, 554120, 621406, 1242812, 1553515, 2174921, 2485624, 3107030, 4349842, 6214060, 8699684, 10874605, 12428120, 17399368, 21749210, 43498420, 86996840]

約数ペア:

[(1, 86996840), (2, 43498420), (4, 21749210), (5, 17399368), (7, 12428120), (8, 10874605), (10, 8699684), (14, 6214060), (20, 4349842), (28, 3107030), (35, 2485624), (40, 2174921), (56, 1553515), (70, 1242812), (140, 621406), (157, 554120), (280, 310703), (314, 277060), (628, 138530), (785, 110824), (1099, 79160), (1256, 69265), (1570, 55412), (1979, 43960), (2198, 39580), (3140, 27706), (3958, 21980), (4396, 19790), (5495, 15832), (6280, 13853), (7916, 10990), (8792, 9895)]