398559780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{2214221}}^1$

素因数の和:2214236

約数の個数: 36

約数和(自身を含む): 1208965212

約数和(自身を除く): 810405432

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 2214221, 4428442, 6642663, 8856884, 11071105, 13285326, 19927989, 22142210, 26570652, 33213315, 39855978, 44284420, 66426630, 79711956, 99639945, 132853260, 199279890, 398559780]

約数ペア:

[(1, 398559780), (2, 199279890), (3, 132853260), (4, 99639945), (5, 79711956), (6, 66426630), (9, 44284420), (10, 39855978), (12, 33213315), (15, 26570652), (18, 22142210), (20, 19927989), (30, 13285326), (36, 11071105), (45, 8856884), (60, 6642663), (90, 4428442), (180, 2214221)]