31340140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{120539}}^1$

素因数の和:120561

約数の個数: 24

約数和(自身を含む): 70877520

約数和(自身を除く): 39537380

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 120539, 241078, 482156, 602695, 1205390, 1567007, 2410780, 3134014, 6268028, 7835035, 15670070, 31340140]

約数ペア:

[(1, 31340140), (2, 15670070), (4, 7835035), (5, 6268028), (10, 3134014), (13, 2410780), (20, 1567007), (26, 1205390), (52, 602695), (65, 482156), (130, 241078), (260, 120539)]