20203984

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{401}}^1$

素因数の和:523

約数の個数: 40

約数和(自身を含む): 40675968

約数和(自身を除く): 20471984

約数列:

[1, 2, 4, 8, 16, 47, 67, 94, 134, 188, 268, 376, 401, 536, 752, 802, 1072, 1604, 3149, 3208, 6298, 6416, 12596, 18847, 25192, 26867, 37694, 50384, 53734, 75388, 107468, 150776, 214936, 301552, 429872, 1262749, 2525498, 5050996, 10101992, 20203984]

約数ペア:

[(1, 20203984), (2, 10101992), (4, 5050996), (8, 2525498), (16, 1262749), (47, 429872), (67, 301552), (94, 214936), (134, 150776), (188, 107468), (268, 75388), (376, 53734), (401, 50384), (536, 37694), (752, 26867), (802, 25192), (1072, 18847), (1604, 12596), (3149, 6416), (3208, 6298)]