198778895

素因数分解:

$5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{269}}^1\times {\mathrm{491}}^1$

素因数の和:815

約数の個数: 32

約数和(自身を含む): 280558080

約数和(自身を除く): 81779185

約数列:

[1, 5, 7, 35, 43, 215, 269, 301, 491, 1345, 1505, 1883, 2455, 3437, 9415, 11567, 17185, 21113, 57835, 80969, 105565, 132079, 147791, 404845, 660395, 738955, 924553, 4622765, 5679397, 28396985, 39755779, 198778895]

約数ペア:

[(1, 198778895), (5, 39755779), (7, 28396985), (35, 5679397), (43, 4622765), (215, 924553), (269, 738955), (301, 660395), (491, 404845), (1345, 147791), (1505, 132079), (1883, 105565), (2455, 80969), (3437, 57835), (9415, 21113), (11567, 17185)]