840456

素因数分解:

$2^3\times 3^4\times {\mathrm{1297}}^1$

素因数の和:1315

約数の個数: 40

約数和(自身を含む): 2355870

約数和(自身を除く): 1515414

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648, 1297, 2594, 3891, 5188, 7782, 10376, 11673, 15564, 23346, 31128, 35019, 46692, 70038, 93384, 105057, 140076, 210114, 280152, 420228, 840456]

約数ペア:

[(1, 840456), (2, 420228), (3, 280152), (4, 210114), (6, 140076), (8, 105057), (9, 93384), (12, 70038), (18, 46692), (24, 35019), (27, 31128), (36, 23346), (54, 15564), (72, 11673), (81, 10376), (108, 7782), (162, 5188), (216, 3891), (324, 2594), (648, 1297)]