1286948740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{10853}}^1$

素因数の和:10898

約数の個数: 108

約数和(自身を含む): 3455935308

約数和(自身を除く): 2168986568

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 121, 140, 154, 196, 220, 242, 245, 308, 385, 484, 490, 539, 605, 770, 847, 980, 1078, 1210, 1540, 1694, 2156, 2420, 2695, 3388, 4235, 5390, 5929, 8470, 10780, 10853, 11858, 16940, 21706, 23716, 29645, 43412, 54265, 59290, 75971, 108530, 118580, 119383, 151942, 217060, 238766, 303884, 379855, 477532, 531797, 596915, 759710, 835681, 1063594, 1193830, 1313213, 1519420, 1671362, 2127188, 2387660, 2626426, 2658985, 3342724, 4178405, 5252852, 5317970, 5849767, 6566065, 8356810, 9192491, 10635940, 11699534, 13132130, 16713620, 18384982, 23399068, 26264260, 29248835, 36769964, 45962455, 58497670, 64347437, 91924910, 116995340, 128694874, 183849820, 257389748, 321737185, 643474370, 1286948740]

約数ペア:

[(1, 1286948740), (2, 643474370), (4, 321737185), (5, 257389748), (7, 183849820), (10, 128694874), (11, 116995340), (14, 91924910), (20, 64347437), (22, 58497670), (28, 45962455), (35, 36769964), (44, 29248835), (49, 26264260), (55, 23399068), (70, 18384982), (77, 16713620), (98, 13132130), (110, 11699534), (121, 10635940), (140, 9192491), (154, 8356810), (196, 6566065), (220, 5849767), (242, 5317970), (245, 5252852), (308, 4178405), (385, 3342724), (484, 2658985), (490, 2626426), (539, 2387660), (605, 2127188), (770, 1671362), (847, 1519420), (980, 1313213), (1078, 1193830), (1210, 1063594), (1540, 835681), (1694, 759710), (2156, 596915), (2420, 531797), (2695, 477532), (3388, 379855), (4235, 303884), (5390, 238766), (5929, 217060), (8470, 151942), (10780, 119383), (10853, 118580), (11858, 108530), (16940, 75971), (21706, 59290), (23716, 54265), (29645, 43412)]