128902356

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{1997}}^1$

素因数の和:2181

約数の個数: 72

約数和(自身を含む): 357817824

約数和(自身を除く): 228915468

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 163, 198, 326, 396, 489, 652, 978, 1467, 1793, 1956, 1997, 2934, 3586, 3994, 5379, 5868, 5991, 7172, 7988, 10758, 11982, 16137, 17973, 21516, 21967, 23964, 32274, 35946, 43934, 64548, 65901, 71892, 87868, 131802, 197703, 263604, 325511, 395406, 651022, 790812, 976533, 1302044, 1953066, 2929599, 3580621, 3906132, 5859198, 7161242, 10741863, 11718396, 14322484, 21483726, 32225589, 42967452, 64451178, 128902356]

約数ペア:

[(1, 128902356), (2, 64451178), (3, 42967452), (4, 32225589), (6, 21483726), (9, 14322484), (11, 11718396), (12, 10741863), (18, 7161242), (22, 5859198), (33, 3906132), (36, 3580621), (44, 2929599), (66, 1953066), (99, 1302044), (132, 976533), (163, 790812), (198, 651022), (326, 395406), (396, 325511), (489, 263604), (652, 197703), (978, 131802), (1467, 87868), (1793, 71892), (1956, 65901), (1997, 64548), (2934, 43934), (3586, 35946), (3994, 32274), (5379, 23964), (5868, 21967), (5991, 21516), (7172, 17973), (7988, 16137), (10758, 11982)]