69981800

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{193}}^1$

素因数の和:260

約数の個数: 144

約数和(自身を含む): 195394860

約数和(自身を除く): 125413060

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 37, 40, 49, 50, 56, 70, 74, 98, 100, 140, 148, 175, 185, 193, 196, 200, 245, 259, 280, 296, 350, 370, 386, 392, 490, 518, 700, 740, 772, 925, 965, 980, 1036, 1225, 1295, 1351, 1400, 1480, 1544, 1813, 1850, 1930, 1960, 2072, 2450, 2590, 2702, 3626, 3700, 3860, 4825, 4900, 5180, 5404, 6475, 6755, 7141, 7252, 7400, 7720, 9065, 9457, 9650, 9800, 10360, 10808, 12950, 13510, 14282, 14504, 18130, 18914, 19300, 25900, 27020, 28564, 33775, 35705, 36260, 37828, 38600, 45325, 47285, 49987, 51800, 54040, 57128, 67550, 71410, 72520, 75656, 90650, 94570, 99974, 135100, 142820, 178525, 181300, 189140, 199948, 236425, 249935, 270200, 285640, 349909, 357050, 362600, 378280, 399896, 472850, 499870, 699818, 714100, 945700, 999740, 1249675, 1399636, 1428200, 1749545, 1891400, 1999480, 2499350, 2799272, 3499090, 4998700, 6998180, 8747725, 9997400, 13996360, 17495450, 34990900, 69981800]

約数ペア:

[(1, 69981800), (2, 34990900), (4, 17495450), (5, 13996360), (7, 9997400), (8, 8747725), (10, 6998180), (14, 4998700), (20, 3499090), (25, 2799272), (28, 2499350), (35, 1999480), (37, 1891400), (40, 1749545), (49, 1428200), (50, 1399636), (56, 1249675), (70, 999740), (74, 945700), (98, 714100), (100, 699818), (140, 499870), (148, 472850), (175, 399896), (185, 378280), (193, 362600), (196, 357050), (200, 349909), (245, 285640), (259, 270200), (280, 249935), (296, 236425), (350, 199948), (370, 189140), (386, 181300), (392, 178525), (490, 142820), (518, 135100), (700, 99974), (740, 94570), (772, 90650), (925, 75656), (965, 72520), (980, 71410), (1036, 67550), (1225, 57128), (1295, 54040), (1351, 51800), (1400, 49987), (1480, 47285), (1544, 45325), (1813, 38600), (1850, 37828), (1930, 36260), (1960, 35705), (2072, 33775), (2450, 28564), (2590, 27020), (2702, 25900), (3626, 19300), (3700, 18914), (3860, 18130), (4825, 14504), (4900, 14282), (5180, 13510), (5404, 12950), (6475, 10808), (6755, 10360), (7141, 9800), (7252, 9650), (7400, 9457), (7720, 9065)]