447860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{457}}^1$

素因数の和:480

約数の個数: 36

約数和(自身を含む): 1096452

約数和(自身を除く): 648592

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 457, 490, 914, 980, 1828, 2285, 3199, 4570, 6398, 9140, 12796, 15995, 22393, 31990, 44786, 63980, 89572, 111965, 223930, 447860]

約数ペア:

[(1, 447860), (2, 223930), (4, 111965), (5, 89572), (7, 63980), (10, 44786), (14, 31990), (20, 22393), (28, 15995), (35, 12796), (49, 9140), (70, 6398), (98, 4570), (140, 3199), (196, 2285), (245, 1828), (457, 980), (490, 914)]