20124149120

素因数分解:

$2^7\times 5^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{4139}}^1$

素因数の和:4336

約数の個数: 128

約数和(自身を含む): 49254739200

約数和(自身を除く): 29130590080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 107, 128, 142, 160, 214, 284, 320, 355, 428, 535, 568, 640, 710, 856, 1070, 1136, 1420, 1712, 2140, 2272, 2840, 3424, 4139, 4280, 4544, 5680, 6848, 7597, 8278, 8560, 9088, 11360, 13696, 15194, 16556, 17120, 20695, 22720, 30388, 33112, 34240, 37985, 41390, 45440, 60776, 66224, 68480, 75970, 82780, 121552, 132448, 151940, 165560, 243104, 264896, 293869, 303880, 331120, 442873, 486208, 529792, 587738, 607760, 662240, 885746, 972416, 1175476, 1215520, 1324480, 1469345, 1771492, 2214365, 2350952, 2431040, 2648960, 2938690, 3542984, 4428730, 4701904, 4862080, 5877380, 7085968, 8857460, 9403808, 11754760, 14171936, 17714920, 18807616, 23509520, 28343872, 31443983, 35429840, 37615232, 47019040, 56687744, 62887966, 70859680, 94038080, 125775932, 141719360, 157219915, 188076160, 251551864, 283438720, 314439830, 503103728, 628879660, 1006207456, 1257759320, 2012414912, 2515518640, 4024829824, 5031037280, 10062074560, 20124149120]

約数ペア:

[(1, 20124149120), (2, 10062074560), (4, 5031037280), (5, 4024829824), (8, 2515518640), (10, 2012414912), (16, 1257759320), (20, 1006207456), (32, 628879660), (40, 503103728), (64, 314439830), (71, 283438720), (80, 251551864), (107, 188076160), (128, 157219915), (142, 141719360), (160, 125775932), (214, 94038080), (284, 70859680), (320, 62887966), (355, 56687744), (428, 47019040), (535, 37615232), (568, 35429840), (640, 31443983), (710, 28343872), (856, 23509520), (1070, 18807616), (1136, 17714920), (1420, 14171936), (1712, 11754760), (2140, 9403808), (2272, 8857460), (2840, 7085968), (3424, 5877380), (4139, 4862080), (4280, 4701904), (4544, 4428730), (5680, 3542984), (6848, 2938690), (7597, 2648960), (8278, 2431040), (8560, 2350952), (9088, 2214365), (11360, 1771492), (13696, 1469345), (15194, 1324480), (16556, 1215520), (17120, 1175476), (20695, 972416), (22720, 885746), (30388, 662240), (33112, 607760), (34240, 587738), (37985, 529792), (41390, 486208), (45440, 442873), (60776, 331120), (66224, 303880), (68480, 293869), (75970, 264896), (82780, 243104), (121552, 165560), (132448, 151940)]