1991036551660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{491}}^1\times {\mathrm{362707}}^1$

素因数の和:363263

約数の個数: 96

約数和(自身を含む): 4616918836992

約数和(自身を除く): 2625882285332

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 172, 215, 260, 430, 491, 559, 860, 982, 1118, 1964, 2236, 2455, 2795, 4910, 5590, 6383, 9820, 11180, 12766, 21113, 25532, 31915, 42226, 63830, 84452, 105565, 127660, 211130, 274469, 362707, 422260, 548938, 725414, 1097876, 1372345, 1450828, 1813535, 2744690, 3627070, 4715191, 5489380, 7254140, 9430382, 15596401, 18860764, 23575955, 31192802, 47151910, 62385604, 77982005, 94303820, 155964010, 178089137, 202753213, 311928020, 356178274, 405506426, 712356548, 811012852, 890445685, 1013766065, 1780891370, 2027532130, 2315158781, 3561782740, 4055064260, 4630317562, 7657832891, 9260635124, 11575793905, 15315665782, 23151587810, 30631331564, 38289164455, 46303175620, 76578328910, 99551827583, 153156657820, 199103655166, 398207310332, 497759137915, 995518275830, 1991036551660]

約数ペア:

[(1, 1991036551660), (2, 995518275830), (4, 497759137915), (5, 398207310332), (10, 199103655166), (13, 153156657820), (20, 99551827583), (26, 76578328910), (43, 46303175620), (52, 38289164455), (65, 30631331564), (86, 23151587810), (130, 15315665782), (172, 11575793905), (215, 9260635124), (260, 7657832891), (430, 4630317562), (491, 4055064260), (559, 3561782740), (860, 2315158781), (982, 2027532130), (1118, 1780891370), (1964, 1013766065), (2236, 890445685), (2455, 811012852), (2795, 712356548), (4910, 405506426), (5590, 356178274), (6383, 311928020), (9820, 202753213), (11180, 178089137), (12766, 155964010), (21113, 94303820), (25532, 77982005), (31915, 62385604), (42226, 47151910), (63830, 31192802), (84452, 23575955), (105565, 18860764), (127660, 15596401), (211130, 9430382), (274469, 7254140), (362707, 5489380), (422260, 4715191), (548938, 3627070), (725414, 2744690), (1097876, 1813535), (1372345, 1450828)]