31415540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{120829}}^1$

素因数の和:120851

約数の個数: 24

約数和(自身を含む): 71048040

約数和(自身を除く): 39632500

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 120829, 241658, 483316, 604145, 1208290, 1570777, 2416580, 3141554, 6283108, 7853885, 15707770, 31415540]

約数ペア:

[(1, 31415540), (2, 15707770), (4, 7853885), (5, 6283108), (10, 3141554), (13, 2416580), (20, 1570777), (26, 1208290), (52, 604145), (65, 483316), (130, 241658), (260, 120829)]