138580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1$

素因数の和:76

約数の個数: 36

約数和(自身を含む): 322812

約数和(自身を除く): 184232

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 65, 82, 130, 164, 169, 205, 260, 338, 410, 533, 676, 820, 845, 1066, 1690, 2132, 2665, 3380, 5330, 6929, 10660, 13858, 27716, 34645, 69290, 138580]

約数ペア:

[(1, 138580), (2, 69290), (4, 34645), (5, 27716), (10, 13858), (13, 10660), (20, 6929), (26, 5330), (41, 3380), (52, 2665), (65, 2132), (82, 1690), (130, 1066), (164, 845), (169, 820), (205, 676), (260, 533), (338, 410)]