31605340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{121559}}^1$

素因数の和:121581

約数の個数: 24

約数和(自身を含む): 71477280

約数和(自身を除く): 39871940

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 121559, 243118, 486236, 607795, 1215590, 1580267, 2431180, 3160534, 6321068, 7901335, 15802670, 31605340]

約数ペア:

[(1, 31605340), (2, 15802670), (4, 7901335), (5, 6321068), (10, 3160534), (13, 2431180), (20, 1580267), (26, 1215590), (52, 607795), (65, 486236), (130, 243118), (260, 121559)]