257231730

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{1224913}}^1$

素因数の和:1224930

約数の個数: 32

約数和(自身を含む): 705550464

約数和(自身を除く): 448318734

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 1224913, 2449826, 3674739, 6124565, 7349478, 8574391, 12249130, 17148782, 18373695, 25723173, 36747390, 42871955, 51446346, 85743910, 128615865, 257231730]

約数ペア:

[(1, 257231730), (2, 128615865), (3, 85743910), (5, 51446346), (6, 42871955), (7, 36747390), (10, 25723173), (14, 18373695), (15, 17148782), (21, 12249130), (30, 8574391), (35, 7349478), (42, 6124565), (70, 3674739), (105, 2449826), (210, 1224913)]