8381380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{457}}^1$

素因数の和:604

約数の個数: 48

約数和(自身を含む): 20313216

約数和(自身を除く): 11931836

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 131, 140, 262, 457, 524, 655, 914, 917, 1310, 1828, 1834, 2285, 2620, 3199, 3668, 4570, 4585, 6398, 9140, 9170, 12796, 15995, 18340, 31990, 59867, 63980, 119734, 239468, 299335, 419069, 598670, 838138, 1197340, 1676276, 2095345, 4190690, 8381380]

約数ペア:

[(1, 8381380), (2, 4190690), (4, 2095345), (5, 1676276), (7, 1197340), (10, 838138), (14, 598670), (20, 419069), (28, 299335), (35, 239468), (70, 119734), (131, 63980), (140, 59867), (262, 31990), (457, 18340), (524, 15995), (655, 12796), (914, 9170), (917, 9140), (1310, 6398), (1828, 4585), (1834, 4570), (2285, 3668), (2620, 3199)]