30886660

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{31517}}^1$

素因数の和:31540

約数の個数: 36

約数和(自身を含む): 75454092

約数和(自身を除く): 44567432

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 31517, 63034, 126068, 157585, 220619, 315170, 441238, 630340, 882476, 1103095, 1544333, 2206190, 3088666, 4412380, 6177332, 7721665, 15443330, 30886660]

約数ペア:

[(1, 30886660), (2, 15443330), (4, 7721665), (5, 6177332), (7, 4412380), (10, 3088666), (14, 2206190), (20, 1544333), (28, 1103095), (35, 882476), (49, 630340), (70, 441238), (98, 315170), (140, 220619), (196, 157585), (245, 126068), (490, 63034), (980, 31517)]