31142140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{81953}}^1$

素因数の和:81981

約数の個数: 24

約数和(自身を含む): 68841360

約数和(自身を除く): 37699220

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 81953, 163906, 327812, 409765, 819530, 1557107, 1639060, 3114214, 6228428, 7785535, 15571070, 31142140]

約数ペア:

[(1, 31142140), (2, 15571070), (4, 7785535), (5, 6228428), (10, 3114214), (19, 1639060), (20, 1557107), (38, 819530), (76, 409765), (95, 327812), (190, 163906), (380, 81953)]