8999540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2153}}^1$

素因数の和:2192

約数の個数: 48

約数和(自身を含む): 21712320

約数和(自身を除く): 12712780

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 2153, 4180, 4306, 8612, 10765, 21530, 23683, 40907, 43060, 47366, 81814, 94732, 118415, 163628, 204535, 236830, 409070, 449977, 473660, 818140, 899954, 1799908, 2249885, 4499770, 8999540]

約数ペア:

[(1, 8999540), (2, 4499770), (4, 2249885), (5, 1799908), (10, 899954), (11, 818140), (19, 473660), (20, 449977), (22, 409070), (38, 236830), (44, 204535), (55, 163628), (76, 118415), (95, 94732), (110, 81814), (190, 47366), (209, 43060), (220, 40907), (380, 23683), (418, 21530), (836, 10765), (1045, 8612), (2090, 4306), (2153, 4180)]