20456200

素因数分解:

$2^3\times 5^2\times {\mathrm{23}}^1\times {\mathrm{4447}}^1$

素因数の和:4486

約数の個数: 48

約数和(自身を含む): 49639680

約数和(自身を除く): 29183480

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 40, 46, 50, 92, 100, 115, 184, 200, 230, 460, 575, 920, 1150, 2300, 4447, 4600, 8894, 17788, 22235, 35576, 44470, 88940, 102281, 111175, 177880, 204562, 222350, 409124, 444700, 511405, 818248, 889400, 1022810, 2045620, 2557025, 4091240, 5114050, 10228100, 20456200]

約数ペア:

[(1, 20456200), (2, 10228100), (4, 5114050), (5, 4091240), (8, 2557025), (10, 2045620), (20, 1022810), (23, 889400), (25, 818248), (40, 511405), (46, 444700), (50, 409124), (92, 222350), (100, 204562), (115, 177880), (184, 111175), (200, 102281), (230, 88940), (460, 44470), (575, 35576), (920, 22235), (1150, 17788), (2300, 8894), (4447, 4600)]