61421720

素因数分解:

$2^3\times 5^1\times {\mathrm{1535543}}^1$

素因数の和:1535554

約数の個数: 16

約数和(自身を含む): 138198960

約数和(自身を除く): 76777240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1535543, 3071086, 6142172, 7677715, 12284344, 15355430, 30710860, 61421720]

約数ペア:

[(1, 61421720), (2, 30710860), (4, 15355430), (5, 12284344), (8, 7677715), (10, 6142172), (20, 3071086), (40, 1535543)]