210989020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{8963}}^1$

素因数の和:9090

約数の個数: 48

約数和(自身を含む): 487928448

約数和(自身を除く): 276939428

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 107, 110, 214, 220, 428, 535, 1070, 1177, 2140, 2354, 4708, 5885, 8963, 11770, 17926, 23540, 35852, 44815, 89630, 98593, 179260, 197186, 394372, 492965, 959041, 985930, 1918082, 1971860, 3836164, 4795205, 9590410, 10549451, 19180820, 21098902, 42197804, 52747255, 105494510, 210989020]

約数ペア:

[(1, 210989020), (2, 105494510), (4, 52747255), (5, 42197804), (10, 21098902), (11, 19180820), (20, 10549451), (22, 9590410), (44, 4795205), (55, 3836164), (107, 1971860), (110, 1918082), (214, 985930), (220, 959041), (428, 492965), (535, 394372), (1070, 197186), (1177, 179260), (2140, 98593), (2354, 89630), (4708, 44815), (5885, 35852), (8963, 23540), (11770, 17926)]