28917760

素因数分解:

$2^{14}\times 5^1\times {\mathrm{353}}^1$

素因数の和:386

約数の個数: 60

約数和(自身を含む): 69597108

約数和(自身を除く): 40679348

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 353, 512, 640, 706, 1024, 1280, 1412, 1765, 2048, 2560, 2824, 3530, 4096, 5120, 5648, 7060, 8192, 10240, 11296, 14120, 16384, 20480, 22592, 28240, 40960, 45184, 56480, 81920, 90368, 112960, 180736, 225920, 361472, 451840, 722944, 903680, 1445888, 1807360, 2891776, 3614720, 5783552, 7229440, 14458880, 28917760]

約数ペア:

[(1, 28917760), (2, 14458880), (4, 7229440), (5, 5783552), (8, 3614720), (10, 2891776), (16, 1807360), (20, 1445888), (32, 903680), (40, 722944), (64, 451840), (80, 361472), (128, 225920), (160, 180736), (256, 112960), (320, 90368), (353, 81920), (512, 56480), (640, 45184), (706, 40960), (1024, 28240), (1280, 22592), (1412, 20480), (1765, 16384), (2048, 14120), (2560, 11296), (2824, 10240), (3530, 8192), (4096, 7060), (5120, 5648)]