20806316240

素因数分解:

$2^4\times 5^1\times {\mathrm{167}}^1\times {\mathrm{1557359}}^1$

素因数の和:1557539

約数の個数: 40

約数和(自身を含む): 48664385280

約数和(自身を除く): 27858069040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 167, 334, 668, 835, 1336, 1670, 2672, 3340, 6680, 13360, 1557359, 3114718, 6229436, 7786795, 12458872, 15573590, 24917744, 31147180, 62294360, 124588720, 260078953, 520157906, 1040315812, 1300394765, 2080631624, 2600789530, 4161263248, 5201579060, 10403158120, 20806316240]

約数ペア:

[(1, 20806316240), (2, 10403158120), (4, 5201579060), (5, 4161263248), (8, 2600789530), (10, 2080631624), (16, 1300394765), (20, 1040315812), (40, 520157906), (80, 260078953), (167, 124588720), (334, 62294360), (668, 31147180), (835, 24917744), (1336, 15573590), (1670, 12458872), (2672, 7786795), (3340, 6229436), (6680, 3114718), (13360, 1557359)]