135402020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{1237}}^1$

素因数の和:1680

約数の個数: 48

約数和(自身を含む): 307192368

約数和(自身を除く): 171790348

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 421, 842, 1237, 1684, 2105, 2474, 4210, 4948, 5473, 6185, 8420, 10946, 12370, 16081, 21892, 24740, 27365, 32162, 54730, 64324, 80405, 109460, 160810, 321620, 520777, 1041554, 2083108, 2603885, 5207770, 6770101, 10415540, 13540202, 27080404, 33850505, 67701010, 135402020]

約数ペア:

[(1, 135402020), (2, 67701010), (4, 33850505), (5, 27080404), (10, 13540202), (13, 10415540), (20, 6770101), (26, 5207770), (52, 2603885), (65, 2083108), (130, 1041554), (260, 520777), (421, 321620), (842, 160810), (1237, 109460), (1684, 80405), (2105, 64324), (2474, 54730), (4210, 32162), (4948, 27365), (5473, 24740), (6185, 21892), (8420, 16081), (10946, 12370)]