68504240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{821}}^1$

素因数の和:990

約数の個数: 80

約数和(自身を含む): 183470400

約数和(自身を除く): 114966160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 149, 280, 298, 560, 596, 745, 821, 1043, 1192, 1490, 1642, 2086, 2384, 2980, 3284, 4105, 4172, 5215, 5747, 5960, 6568, 8210, 8344, 10430, 11494, 11920, 13136, 16420, 16688, 20860, 22988, 28735, 32840, 41720, 45976, 57470, 65680, 83440, 91952, 114940, 122329, 229880, 244658, 459760, 489316, 611645, 856303, 978632, 1223290, 1712606, 1957264, 2446580, 3425212, 4281515, 4893160, 6850424, 8563030, 9786320, 13700848, 17126060, 34252120, 68504240]

約数ペア:

[(1, 68504240), (2, 34252120), (4, 17126060), (5, 13700848), (7, 9786320), (8, 8563030), (10, 6850424), (14, 4893160), (16, 4281515), (20, 3425212), (28, 2446580), (35, 1957264), (40, 1712606), (56, 1223290), (70, 978632), (80, 856303), (112, 611645), (140, 489316), (149, 459760), (280, 244658), (298, 229880), (560, 122329), (596, 114940), (745, 91952), (821, 83440), (1043, 65680), (1192, 57470), (1490, 45976), (1642, 41720), (2086, 32840), (2384, 28735), (2980, 22988), (3284, 20860), (4105, 16688), (4172, 16420), (5215, 13136), (5747, 11920), (5960, 11494), (6568, 10430), (8210, 8344)]