20193728740

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{929}}^1\times {\mathrm{4229}}^1$

素因数の和:5424

約数の個数: 48

約数和(自身を含む): 42627740400

約数和(自身を除く): 22434011660

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 929, 1028, 1285, 1858, 2570, 3716, 4229, 4645, 5140, 8458, 9290, 16916, 18580, 21145, 42290, 84580, 238753, 477506, 955012, 1086853, 1193765, 2173706, 2387530, 3928741, 4347412, 4775060, 5434265, 7857482, 10868530, 15714964, 19643705, 21737060, 39287410, 78574820, 1009686437, 2019372874, 4038745748, 5048432185, 10096864370, 20193728740]

約数ペア:

[(1, 20193728740), (2, 10096864370), (4, 5048432185), (5, 4038745748), (10, 2019372874), (20, 1009686437), (257, 78574820), (514, 39287410), (929, 21737060), (1028, 19643705), (1285, 15714964), (1858, 10868530), (2570, 7857482), (3716, 5434265), (4229, 4775060), (4645, 4347412), (5140, 3928741), (8458, 2387530), (9290, 2173706), (16916, 1193765), (18580, 1086853), (21145, 955012), (42290, 477506), (84580, 238753)]