21167708540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{349}}^1\times {\mathrm{353}}^1$

素因数の和:804

約数の個数: 144

約数和(自身を含む): 49831588800

約数和(自身を除く): 28663880260

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 121, 142, 220, 242, 284, 349, 353, 355, 484, 605, 698, 706, 710, 781, 1210, 1396, 1412, 1420, 1562, 1745, 1765, 2420, 3124, 3490, 3530, 3839, 3883, 3905, 6980, 7060, 7678, 7766, 7810, 8591, 15356, 15532, 15620, 17182, 19195, 19415, 24779, 25063, 34364, 38390, 38830, 42229, 42713, 42955, 49558, 50126, 76780, 77660, 84458, 85426, 85910, 99116, 100252, 123197, 123895, 125315, 168916, 170852, 171820, 211145, 213565, 246394, 247790, 250630, 272569, 275693, 422290, 427130, 492788, 495580, 501260, 545138, 551386, 615985, 844580, 854260, 1090276, 1102772, 1231970, 1355167, 1362845, 1378465, 2463940, 2710334, 2725690, 2756930, 2998259, 3032623, 5420668, 5451380, 5513860, 5996518, 6065246, 6775835, 8746987, 11993036, 12130492, 13551670, 14906837, 14991295, 15163115, 17493974, 27103340, 29813674, 29982590, 30326230, 34987948, 43734935, 59627348, 59965180, 60652460, 74534185, 87469870, 96216857, 149068370, 174939740, 192433714, 298136740, 384867428, 481084285, 962168570, 1058385427, 1924337140, 2116770854, 4233541708, 5291927135, 10583854270, 21167708540]

約数ペア:

[(1, 21167708540), (2, 10583854270), (4, 5291927135), (5, 4233541708), (10, 2116770854), (11, 1924337140), (20, 1058385427), (22, 962168570), (44, 481084285), (55, 384867428), (71, 298136740), (110, 192433714), (121, 174939740), (142, 149068370), (220, 96216857), (242, 87469870), (284, 74534185), (349, 60652460), (353, 59965180), (355, 59627348), (484, 43734935), (605, 34987948), (698, 30326230), (706, 29982590), (710, 29813674), (781, 27103340), (1210, 17493974), (1396, 15163115), (1412, 14991295), (1420, 14906837), (1562, 13551670), (1745, 12130492), (1765, 11993036), (2420, 8746987), (3124, 6775835), (3490, 6065246), (3530, 5996518), (3839, 5513860), (3883, 5451380), (3905, 5420668), (6980, 3032623), (7060, 2998259), (7678, 2756930), (7766, 2725690), (7810, 2710334), (8591, 2463940), (15356, 1378465), (15532, 1362845), (15620, 1355167), (17182, 1231970), (19195, 1102772), (19415, 1090276), (24779, 854260), (25063, 844580), (34364, 615985), (38390, 551386), (38830, 545138), (42229, 501260), (42713, 495580), (42955, 492788), (49558, 427130), (50126, 422290), (76780, 275693), (77660, 272569), (84458, 250630), (85426, 247790), (85910, 246394), (99116, 213565), (100252, 211145), (123197, 171820), (123895, 170852), (125315, 168916)]