100142780

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{173}}^1\times {\mathrm{281}}^1$

素因数の和:566

約数の個数: 48

約数和(自身を含む): 214329024

約数和(自身を除く): 114186244

約数列:

[1, 2, 4, 5, 10, 20, 103, 173, 206, 281, 346, 412, 515, 562, 692, 865, 1030, 1124, 1405, 1730, 2060, 2810, 3460, 5620, 17819, 28943, 35638, 48613, 57886, 71276, 89095, 97226, 115772, 144715, 178190, 194452, 243065, 289430, 356380, 486130, 578860, 972260, 5007139, 10014278, 20028556, 25035695, 50071390, 100142780]

約数ペア:

[(1, 100142780), (2, 50071390), (4, 25035695), (5, 20028556), (10, 10014278), (20, 5007139), (103, 972260), (173, 578860), (206, 486130), (281, 356380), (346, 289430), (412, 243065), (515, 194452), (562, 178190), (692, 144715), (865, 115772), (1030, 97226), (1124, 89095), (1405, 71276), (1730, 57886), (2060, 48613), (2810, 35638), (3460, 28943), (5620, 17819)]