20123289728

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{8274379}}^1$

素因数の和:8274412

約数の個数: 32

約数和(自身を含む): 42199338000

約数和(自身を除く): 22076048272

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 304, 608, 1216, 2432, 8274379, 16548758, 33097516, 66195032, 132390064, 157213201, 264780128, 314426402, 529560256, 628852804, 1059120512, 1257705608, 2515411216, 5030822432, 10061644864, 20123289728]

約数ペア:

[(1, 20123289728), (2, 10061644864), (4, 5030822432), (8, 2515411216), (16, 1257705608), (19, 1059120512), (32, 628852804), (38, 529560256), (64, 314426402), (76, 264780128), (128, 157213201), (152, 132390064), (304, 66195032), (608, 33097516), (1216, 16548758), (2432, 8274379)]