28014080

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{353}}^1$

素因数の和:407

約数の個数: 80

約数和(自身を含む): 69531264

約数和(自身を除く): 41517184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 353, 496, 512, 620, 640, 706, 992, 1240, 1280, 1412, 1765, 1984, 2480, 2560, 2824, 3530, 3968, 4960, 5648, 7060, 7936, 9920, 10943, 11296, 14120, 15872, 19840, 21886, 22592, 28240, 39680, 43772, 45184, 54715, 56480, 79360, 87544, 90368, 109430, 112960, 175088, 180736, 218860, 225920, 350176, 437720, 451840, 700352, 875440, 903680, 1400704, 1750880, 2801408, 3501760, 5602816, 7003520, 14007040, 28014080]

約数ペア:

[(1, 28014080), (2, 14007040), (4, 7003520), (5, 5602816), (8, 3501760), (10, 2801408), (16, 1750880), (20, 1400704), (31, 903680), (32, 875440), (40, 700352), (62, 451840), (64, 437720), (80, 350176), (124, 225920), (128, 218860), (155, 180736), (160, 175088), (248, 112960), (256, 109430), (310, 90368), (320, 87544), (353, 79360), (496, 56480), (512, 54715), (620, 45184), (640, 43772), (706, 39680), (992, 28240), (1240, 22592), (1280, 21886), (1412, 19840), (1765, 15872), (1984, 14120), (2480, 11296), (2560, 10943), (2824, 9920), (3530, 7936), (3968, 7060), (4960, 5648)]