205129985

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{269}}^1\times {\mathrm{349}}^1$

素因数の和:665

約数の個数: 32

約数和(自身を含む): 272160000

約数和(自身を除く): 67030015

約数列:

[1, 5, 19, 23, 95, 115, 269, 349, 437, 1345, 1745, 2185, 5111, 6187, 6631, 8027, 25555, 30935, 33155, 40135, 93881, 117553, 152513, 469405, 587765, 762565, 1783739, 2159263, 8918695, 10796315, 41025997, 205129985]

約数ペア:

[(1, 205129985), (5, 41025997), (19, 10796315), (23, 8918695), (95, 2159263), (115, 1783739), (269, 762565), (349, 587765), (437, 469405), (1345, 152513), (1745, 117553), (2185, 93881), (5111, 40135), (6187, 33155), (6631, 30935), (8027, 25555)]