31870540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{122579}}^1$

素因数の和:122601

約数の個数: 24

約数和(自身を含む): 72077040

約数和(自身を除く): 40206500

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 122579, 245158, 490316, 612895, 1225790, 1593527, 2451580, 3187054, 6374108, 7967635, 15935270, 31870540]

約数ペア:

[(1, 31870540), (2, 15935270), (4, 7967635), (5, 6374108), (10, 3187054), (13, 2451580), (20, 1593527), (26, 1225790), (52, 612895), (65, 490316), (130, 245158), (260, 122579)]