277281290

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{1999}}^1$

素因数の和:2127

約数の個数: 64

約数和(自身を含む): 592704000

約数和(自身を除く): 315422710

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 97, 110, 130, 143, 194, 286, 485, 715, 970, 1067, 1261, 1430, 1999, 2134, 2522, 3998, 5335, 6305, 9995, 10670, 12610, 13871, 19990, 21989, 25987, 27742, 43978, 51974, 69355, 109945, 129935, 138710, 193903, 219890, 259870, 285857, 387806, 571714, 969515, 1429285, 1939030, 2132933, 2520739, 2858570, 4265866, 5041478, 10664665, 12603695, 21329330, 25207390, 27728129, 55456258, 138640645, 277281290]

約数ペア:

[(1, 277281290), (2, 138640645), (5, 55456258), (10, 27728129), (11, 25207390), (13, 21329330), (22, 12603695), (26, 10664665), (55, 5041478), (65, 4265866), (97, 2858570), (110, 2520739), (130, 2132933), (143, 1939030), (194, 1429285), (286, 969515), (485, 571714), (715, 387806), (970, 285857), (1067, 259870), (1261, 219890), (1430, 193903), (1999, 138710), (2134, 129935), (2522, 109945), (3998, 69355), (5335, 51974), (6305, 43978), (9995, 27742), (10670, 25987), (12610, 21989), (13871, 19990)]