18171521888

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{615233}}^1$

素因数の和:615327

約数の個数: 48

約数和(自身を含む): 39069819936

約数和(自身を除く): 20898298048

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 71, 104, 142, 208, 284, 416, 568, 923, 1136, 1846, 2272, 3692, 7384, 14768, 29536, 615233, 1230466, 2460932, 4921864, 7998029, 9843728, 15996058, 19687456, 31992116, 43681543, 63984232, 87363086, 127968464, 174726172, 255936928, 349452344, 567860059, 698904688, 1135720118, 1397809376, 2271440236, 4542880472, 9085760944, 18171521888]

約数ペア:

[(1, 18171521888), (2, 9085760944), (4, 4542880472), (8, 2271440236), (13, 1397809376), (16, 1135720118), (26, 698904688), (32, 567860059), (52, 349452344), (71, 255936928), (104, 174726172), (142, 127968464), (208, 87363086), (284, 63984232), (416, 43681543), (568, 31992116), (923, 19687456), (1136, 15996058), (1846, 9843728), (2272, 7998029), (3692, 4921864), (7384, 2460932), (14768, 1230466), (29536, 615233)]