20731656240

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{38239}}^1$

素因数の和:38512

約数の個数: 160

約数和(自身を含む): 71695411200

約数和(自身を除く): 50963754960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 251, 270, 360, 432, 502, 540, 720, 753, 1004, 1080, 1255, 1506, 2008, 2160, 2259, 2510, 3012, 3765, 4016, 4518, 5020, 6024, 6777, 7530, 9036, 10040, 11295, 12048, 13554, 15060, 18072, 20080, 22590, 27108, 30120, 33885, 36144, 38239, 45180, 54216, 60240, 67770, 76478, 90360, 108432, 114717, 135540, 152956, 180720, 191195, 229434, 271080, 305912, 344151, 382390, 458868, 542160, 573585, 611824, 688302, 764780, 917736, 1032453, 1147170, 1376604, 1529560, 1720755, 1835472, 2064906, 2294340, 2753208, 3059120, 3441510, 4129812, 4588680, 5162265, 5506416, 6883020, 8259624, 9177360, 9597989, 10324530, 13766040, 16519248, 19195978, 20649060, 27532080, 28793967, 38391956, 41298120, 47989945, 57587934, 76783912, 82596240, 86381901, 95979890, 115175868, 143969835, 153567824, 172763802, 191959780, 230351736, 259145703, 287939670, 345527604, 383919560, 431909505, 460703472, 518291406, 575879340, 691055208, 767839120, 863819010, 1036582812, 1151758680, 1295728515, 1382110416, 1727638020, 2073165624, 2303517360, 2591457030, 3455276040, 4146331248, 5182914060, 6910552080, 10365828120, 20731656240]

約数ペア:

[(1, 20731656240), (2, 10365828120), (3, 6910552080), (4, 5182914060), (5, 4146331248), (6, 3455276040), (8, 2591457030), (9, 2303517360), (10, 2073165624), (12, 1727638020), (15, 1382110416), (16, 1295728515), (18, 1151758680), (20, 1036582812), (24, 863819010), (27, 767839120), (30, 691055208), (36, 575879340), (40, 518291406), (45, 460703472), (48, 431909505), (54, 383919560), (60, 345527604), (72, 287939670), (80, 259145703), (90, 230351736), (108, 191959780), (120, 172763802), (135, 153567824), (144, 143969835), (180, 115175868), (216, 95979890), (240, 86381901), (251, 82596240), (270, 76783912), (360, 57587934), (432, 47989945), (502, 41298120), (540, 38391956), (720, 28793967), (753, 27532080), (1004, 20649060), (1080, 19195978), (1255, 16519248), (1506, 13766040), (2008, 10324530), (2160, 9597989), (2259, 9177360), (2510, 8259624), (3012, 6883020), (3765, 5506416), (4016, 5162265), (4518, 4588680), (5020, 4129812), (6024, 3441510), (6777, 3059120), (7530, 2753208), (9036, 2294340), (10040, 2064906), (11295, 1835472), (12048, 1720755), (13554, 1529560), (15060, 1376604), (18072, 1147170), (20080, 1032453), (22590, 917736), (27108, 764780), (30120, 688302), (33885, 611824), (36144, 573585), (38239, 542160), (45180, 458868), (54216, 382390), (60240, 344151), (67770, 305912), (76478, 271080), (90360, 229434), (108432, 191195), (114717, 180720), (135540, 152956)]