28405130

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{12853}}^1$

素因数の和:12890

約数の個数: 32

約数和(自身を含む): 58305744

約数和(自身を除く): 29900614

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 1105, 2210, 12853, 25706, 64265, 128530, 167089, 218501, 334178, 437002, 835445, 1092505, 1670890, 2185010, 2840513, 5681026, 14202565, 28405130]

約数ペア:

[(1, 28405130), (2, 14202565), (5, 5681026), (10, 2840513), (13, 2185010), (17, 1670890), (26, 1092505), (34, 835445), (65, 437002), (85, 334178), (130, 218501), (170, 167089), (221, 128530), (442, 64265), (1105, 25706), (2210, 12853)]