18448979920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{787}}^1\times {\mathrm{1021}}^1$

素因数の和:1869

約数の個数: 160

約数和(自身を含む): 50330278656

約数和(自身を除く): 31881298736

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 41, 56, 70, 80, 82, 112, 140, 164, 205, 280, 287, 328, 410, 560, 574, 656, 787, 820, 1021, 1148, 1435, 1574, 1640, 2042, 2296, 2870, 3148, 3280, 3935, 4084, 4592, 5105, 5509, 5740, 6296, 7147, 7870, 8168, 10210, 11018, 11480, 12592, 14294, 15740, 16336, 20420, 22036, 22960, 27545, 28588, 31480, 32267, 35735, 40840, 41861, 44072, 55090, 57176, 62960, 64534, 71470, 81680, 83722, 88144, 110180, 114352, 129068, 142940, 161335, 167444, 209305, 220360, 225869, 258136, 285880, 293027, 322670, 334888, 418610, 440720, 451738, 516272, 571760, 586054, 645340, 669776, 803527, 837220, 903476, 1129345, 1172108, 1290680, 1465135, 1607054, 1674440, 1806952, 2258690, 2344216, 2581360, 2930270, 3214108, 3348880, 3613904, 4017635, 4517380, 4688432, 5624689, 5860540, 6428216, 8035270, 9034760, 11249378, 11721080, 12856432, 16070540, 18069520, 22498756, 23442160, 28123445, 32141080, 32944607, 44997512, 56246890, 64282160, 65889214, 89995024, 112493780, 131778428, 164723035, 224987560, 230612249, 263556856, 329446070, 449975120, 461224498, 527113712, 658892140, 922448996, 1153061245, 1317784280, 1844897992, 2306122490, 2635568560, 3689795984, 4612244980, 9224489960, 18448979920]

約数ペア:

[(1, 18448979920), (2, 9224489960), (4, 4612244980), (5, 3689795984), (7, 2635568560), (8, 2306122490), (10, 1844897992), (14, 1317784280), (16, 1153061245), (20, 922448996), (28, 658892140), (35, 527113712), (40, 461224498), (41, 449975120), (56, 329446070), (70, 263556856), (80, 230612249), (82, 224987560), (112, 164723035), (140, 131778428), (164, 112493780), (205, 89995024), (280, 65889214), (287, 64282160), (328, 56246890), (410, 44997512), (560, 32944607), (574, 32141080), (656, 28123445), (787, 23442160), (820, 22498756), (1021, 18069520), (1148, 16070540), (1435, 12856432), (1574, 11721080), (1640, 11249378), (2042, 9034760), (2296, 8035270), (2870, 6428216), (3148, 5860540), (3280, 5624689), (3935, 4688432), (4084, 4517380), (4592, 4017635), (5105, 3613904), (5509, 3348880), (5740, 3214108), (6296, 2930270), (7147, 2581360), (7870, 2344216), (8168, 2258690), (10210, 1806952), (11018, 1674440), (11480, 1607054), (12592, 1465135), (14294, 1290680), (15740, 1172108), (16336, 1129345), (20420, 903476), (22036, 837220), (22960, 803527), (27545, 669776), (28588, 645340), (31480, 586054), (32267, 571760), (35735, 516272), (40840, 451738), (41861, 440720), (44072, 418610), (55090, 334888), (57176, 322670), (62960, 293027), (64534, 285880), (71470, 258136), (81680, 225869), (83722, 220360), (88144, 209305), (110180, 167444), (114352, 161335), (129068, 142940)]