16988320

素因数分解:

$2^5\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1193}}^1$

素因数の和:1297

約数の個数: 48

約数和(自身を含む): 40619880

約数和(自身を除く): 23631560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 89, 160, 178, 356, 445, 712, 890, 1193, 1424, 1780, 2386, 2848, 3560, 4772, 5965, 7120, 9544, 11930, 14240, 19088, 23860, 38176, 47720, 95440, 106177, 190880, 212354, 424708, 530885, 849416, 1061770, 1698832, 2123540, 3397664, 4247080, 8494160, 16988320]

約数ペア:

[(1, 16988320), (2, 8494160), (4, 4247080), (5, 3397664), (8, 2123540), (10, 1698832), (16, 1061770), (20, 849416), (32, 530885), (40, 424708), (80, 212354), (89, 190880), (160, 106177), (178, 95440), (356, 47720), (445, 38176), (712, 23860), (890, 19088), (1193, 14240), (1424, 11930), (1780, 9544), (2386, 7120), (2848, 5965), (3560, 4772)]