31470140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{121039}}^1$

素因数の和:121061

約数の個数: 24

約数和(自身を含む): 71171520

約数和(自身を除く): 39701380

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 121039, 242078, 484156, 605195, 1210390, 1573507, 2420780, 3147014, 6294028, 7867535, 15735070, 31470140]

約数ペア:

[(1, 31470140), (2, 15735070), (4, 7867535), (5, 6294028), (10, 3147014), (13, 2420780), (20, 1573507), (26, 1210390), (52, 605195), (65, 484156), (130, 242078), (260, 121039)]