31991680

素因数分解:

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

素因数の和:256

約数の個数: 128

約数和(自身を含む): 90233280

約数和(自身を除く): 58241600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 37, 40, 56, 64, 70, 74, 80, 112, 128, 140, 148, 160, 185, 193, 224, 259, 280, 296, 320, 370, 386, 448, 518, 560, 592, 640, 740, 772, 896, 965, 1036, 1120, 1184, 1295, 1351, 1480, 1544, 1930, 2072, 2240, 2368, 2590, 2702, 2960, 3088, 3860, 4144, 4480, 4736, 5180, 5404, 5920, 6176, 6755, 7141, 7720, 8288, 10360, 10808, 11840, 12352, 13510, 14282, 15440, 16576, 20720, 21616, 23680, 24704, 27020, 28564, 30880, 33152, 35705, 41440, 43232, 49987, 54040, 57128, 61760, 71410, 82880, 86464, 99974, 108080, 114256, 123520, 142820, 165760, 172928, 199948, 216160, 228512, 249935, 285640, 399896, 432320, 457024, 499870, 571280, 799792, 864640, 914048, 999740, 1142560, 1599584, 1999480, 2285120, 3199168, 3998960, 4570240, 6398336, 7997920, 15995840, 31991680]

約数ペア:

[(1, 31991680), (2, 15995840), (4, 7997920), (5, 6398336), (7, 4570240), (8, 3998960), (10, 3199168), (14, 2285120), (16, 1999480), (20, 1599584), (28, 1142560), (32, 999740), (35, 914048), (37, 864640), (40, 799792), (56, 571280), (64, 499870), (70, 457024), (74, 432320), (80, 399896), (112, 285640), (128, 249935), (140, 228512), (148, 216160), (160, 199948), (185, 172928), (193, 165760), (224, 142820), (259, 123520), (280, 114256), (296, 108080), (320, 99974), (370, 86464), (386, 82880), (448, 71410), (518, 61760), (560, 57128), (592, 54040), (640, 49987), (740, 43232), (772, 41440), (896, 35705), (965, 33152), (1036, 30880), (1120, 28564), (1184, 27020), (1295, 24704), (1351, 23680), (1480, 21616), (1544, 20720), (1930, 16576), (2072, 15440), (2240, 14282), (2368, 13510), (2590, 12352), (2702, 11840), (2960, 10808), (3088, 10360), (3860, 8288), (4144, 7720), (4480, 7141), (4736, 6755), (5180, 6176), (5404, 5920)]