128187780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{305209}}^1$

素因数の和:305228

約数の個数: 48

約数和(自身を含む): 410202240

約数和(自身を除く): 282014460

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 305209, 610418, 915627, 1220836, 1526045, 1831254, 2136463, 3052090, 3662508, 4272926, 4578135, 6104180, 6409389, 8545852, 9156270, 10682315, 12818778, 18312540, 21364630, 25637556, 32046945, 42729260, 64093890, 128187780]

約数ペア:

[(1, 128187780), (2, 64093890), (3, 42729260), (4, 32046945), (5, 25637556), (6, 21364630), (7, 18312540), (10, 12818778), (12, 10682315), (14, 9156270), (15, 8545852), (20, 6409389), (21, 6104180), (28, 4578135), (30, 4272926), (35, 3662508), (42, 3052090), (60, 2136463), (70, 1831254), (84, 1526045), (105, 1220836), (140, 915627), (210, 610418), (420, 305209)]