210432920

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{86243}}^1$

素因数の和:86315

約数の個数: 32

約数和(自身を含む): 481241520

約数和(自身を除く): 270808600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 86243, 172486, 344972, 431215, 689944, 862430, 1724860, 3449720, 5260823, 10521646, 21043292, 26304115, 42086584, 52608230, 105216460, 210432920]

約数ペア:

[(1, 210432920), (2, 105216460), (4, 52608230), (5, 42086584), (8, 26304115), (10, 21043292), (20, 10521646), (40, 5260823), (61, 3449720), (122, 1724860), (244, 862430), (305, 689944), (488, 431215), (610, 344972), (1220, 172486), (2440, 86243)]