388540802840

素因数分解:

$2^3\times 5^1\times {\mathrm{18131}}^1\times {\mathrm{535741}}^1$

素因数の和:553883

約数の個数: 32

約数和(自身を含む): 874266654960

約数和(自身を除く): 485725852120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 18131, 36262, 72524, 90655, 145048, 181310, 362620, 535741, 725240, 1071482, 2142964, 2678705, 4285928, 5357410, 10714820, 21429640, 9713520071, 19427040142, 38854080284, 48567600355, 77708160568, 97135200710, 194270401420, 388540802840]

約数ペア:

[(1, 388540802840), (2, 194270401420), (4, 97135200710), (5, 77708160568), (8, 48567600355), (10, 38854080284), (20, 19427040142), (40, 9713520071), (18131, 21429640), (36262, 10714820), (72524, 5357410), (90655, 4285928), (145048, 2678705), (181310, 2142964), (362620, 1071482), (535741, 725240)]