71427980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{274723}}^1$

素因数の和:274745

約数の個数: 24

約数和(自身を含む): 161537712

約数和(自身を除く): 90109732

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 274723, 549446, 1098892, 1373615, 2747230, 3571399, 5494460, 7142798, 14285596, 17856995, 35713990, 71427980]

約数ペア:

[(1, 71427980), (2, 35713990), (4, 17856995), (5, 14285596), (10, 7142798), (13, 5494460), (20, 3571399), (26, 2747230), (52, 1373615), (65, 1098892), (130, 549446), (260, 274723)]