20165544770

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{6263}}^1\times {\mathrm{6571}}^1$

素因数の和:12855

約数の個数: 48

約数和(自身を含む): 42237350208

約数和(自身を除く): 22071805438

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 6263, 6571, 12526, 13142, 31315, 32855, 43841, 45997, 62630, 65710, 87682, 91994, 219205, 229985, 306887, 321979, 438410, 459970, 613774, 643958, 1534435, 1609895, 3068870, 3219790, 41154173, 82308346, 205770865, 288079211, 411541730, 576158422, 1440396055, 2016554477, 2880792110, 4033108954, 10082772385, 20165544770]

約数ペア:

[(1, 20165544770), (2, 10082772385), (5, 4033108954), (7, 2880792110), (10, 2016554477), (14, 1440396055), (35, 576158422), (49, 411541730), (70, 288079211), (98, 205770865), (245, 82308346), (490, 41154173), (6263, 3219790), (6571, 3068870), (12526, 1609895), (13142, 1534435), (31315, 643958), (32855, 613774), (43841, 459970), (45997, 438410), (62630, 321979), (65710, 306887), (87682, 229985), (91994, 219205)]