21013788960

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{156913}}^1$

素因数の和:156968

約数の個数: 192

約数和(自身を含む): 75921269760

約数和(自身を除く): 54907480800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 31, 32, 36, 40, 45, 48, 54, 60, 62, 72, 80, 90, 93, 96, 108, 120, 124, 135, 144, 155, 160, 180, 186, 216, 240, 248, 270, 279, 288, 310, 360, 372, 432, 465, 480, 496, 540, 558, 620, 720, 744, 837, 864, 930, 992, 1080, 1116, 1240, 1395, 1440, 1488, 1674, 1860, 2160, 2232, 2480, 2790, 2976, 3348, 3720, 4185, 4320, 4464, 4960, 5580, 6696, 7440, 8370, 8928, 11160, 13392, 14880, 16740, 22320, 26784, 33480, 44640, 66960, 133920, 156913, 313826, 470739, 627652, 784565, 941478, 1255304, 1412217, 1569130, 1882956, 2353695, 2510608, 2824434, 3138260, 3765912, 4236651, 4707390, 4864303, 5021216, 5648868, 6276520, 7061085, 7531824, 8473302, 9414780, 9728606, 11297736, 12553040, 14122170, 14592909, 15063648, 16946604, 18829560, 19457212, 21183255, 22595472, 24321515, 25106080, 28244340, 29185818, 33893208, 37659120, 38914424, 42366510, 43778727, 45190944, 48643030, 56488680, 58371636, 67786416, 72964545, 75318240, 77828848, 84733020, 87557454, 97286060, 112977360, 116743272, 131336181, 135572832, 145929090, 155657696, 169466040, 175114908, 194572120, 218893635, 225954720, 233486544, 262672362, 291858180, 338932080, 350229816, 389144240, 437787270, 466973088, 525344724, 583716360, 656680905, 677864160, 700459632, 778288480, 875574540, 1050689448, 1167432720, 1313361810, 1400919264, 1751149080, 2101378896, 2334865440, 2626723620, 3502298160, 4202757792, 5253447240, 7004596320, 10506894480, 21013788960]

約数ペア:

[(1, 21013788960), (2, 10506894480), (3, 7004596320), (4, 5253447240), (5, 4202757792), (6, 3502298160), (8, 2626723620), (9, 2334865440), (10, 2101378896), (12, 1751149080), (15, 1400919264), (16, 1313361810), (18, 1167432720), (20, 1050689448), (24, 875574540), (27, 778288480), (30, 700459632), (31, 677864160), (32, 656680905), (36, 583716360), (40, 525344724), (45, 466973088), (48, 437787270), (54, 389144240), (60, 350229816), (62, 338932080), (72, 291858180), (80, 262672362), (90, 233486544), (93, 225954720), (96, 218893635), (108, 194572120), (120, 175114908), (124, 169466040), (135, 155657696), (144, 145929090), (155, 135572832), (160, 131336181), (180, 116743272), (186, 112977360), (216, 97286060), (240, 87557454), (248, 84733020), (270, 77828848), (279, 75318240), (288, 72964545), (310, 67786416), (360, 58371636), (372, 56488680), (432, 48643030), (465, 45190944), (480, 43778727), (496, 42366510), (540, 38914424), (558, 37659120), (620, 33893208), (720, 29185818), (744, 28244340), (837, 25106080), (864, 24321515), (930, 22595472), (992, 21183255), (1080, 19457212), (1116, 18829560), (1240, 16946604), (1395, 15063648), (1440, 14592909), (1488, 14122170), (1674, 12553040), (1860, 11297736), (2160, 9728606), (2232, 9414780), (2480, 8473302), (2790, 7531824), (2976, 7061085), (3348, 6276520), (3720, 5648868), (4185, 5021216), (4320, 4864303), (4464, 4707390), (4960, 4236651), (5580, 3765912), (6696, 3138260), (7440, 2824434), (8370, 2510608), (8928, 2353695), (11160, 1882956), (13392, 1569130), (14880, 1412217), (16740, 1255304), (22320, 941478), (26784, 784565), (33480, 627652), (44640, 470739), (66960, 313826), (133920, 156913)]