82278280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{457}}^1\times {\mathrm{643}}^1$

素因数の和:1118

約数の個数: 64

約数和(自身を含む): 212365440

約数和(自身を除く): 130087160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 457, 643, 914, 1286, 1828, 2285, 2572, 3199, 3215, 3656, 4501, 4570, 5144, 6398, 6430, 9002, 9140, 12796, 12860, 15995, 18004, 18280, 22505, 25592, 25720, 31990, 36008, 45010, 63980, 90020, 127960, 180040, 293851, 587702, 1175404, 1469255, 2056957, 2350808, 2938510, 4113914, 5877020, 8227828, 10284785, 11754040, 16455656, 20569570, 41139140, 82278280]

約数ペア:

[(1, 82278280), (2, 41139140), (4, 20569570), (5, 16455656), (7, 11754040), (8, 10284785), (10, 8227828), (14, 5877020), (20, 4113914), (28, 2938510), (35, 2350808), (40, 2056957), (56, 1469255), (70, 1175404), (140, 587702), (280, 293851), (457, 180040), (643, 127960), (914, 90020), (1286, 63980), (1828, 45010), (2285, 36008), (2572, 31990), (3199, 25720), (3215, 25592), (3656, 22505), (4501, 18280), (4570, 18004), (5144, 15995), (6398, 12860), (6430, 12796), (9002, 9140)]