640147315068

素因数分解:

$2^2\times 3^2\times {\mathrm{41}}^1\times {\mathrm{643}}^1\times {\mathrm{674501}}^1$

素因数の和:675195

約数の個数: 72

約数和(自身を含む): 1660197638736

約数和(自身を除く): 1020050323668

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 41, 82, 123, 164, 246, 369, 492, 643, 738, 1286, 1476, 1929, 2572, 3858, 5787, 7716, 11574, 23148, 26363, 52726, 79089, 105452, 158178, 237267, 316356, 474534, 674501, 949068, 1349002, 2023503, 2698004, 4047006, 6070509, 8094012, 12141018, 24282036, 27654541, 55309082, 82963623, 110618164, 165927246, 248890869, 331854492, 433704143, 497781738, 867408286, 995563476, 1301112429, 1734816572, 2602224858, 3903337287, 5204449716, 7806674574, 15613349148, 17781869863, 35563739726, 53345609589, 71127479452, 106691219178, 160036828767, 213382438356, 320073657534, 640147315068]

約数ペア:

[(1, 640147315068), (2, 320073657534), (3, 213382438356), (4, 160036828767), (6, 106691219178), (9, 71127479452), (12, 53345609589), (18, 35563739726), (36, 17781869863), (41, 15613349148), (82, 7806674574), (123, 5204449716), (164, 3903337287), (246, 2602224858), (369, 1734816572), (492, 1301112429), (643, 995563476), (738, 867408286), (1286, 497781738), (1476, 433704143), (1929, 331854492), (2572, 248890869), (3858, 165927246), (5787, 110618164), (7716, 82963623), (11574, 55309082), (23148, 27654541), (26363, 24282036), (52726, 12141018), (79089, 8094012), (105452, 6070509), (158178, 4047006), (237267, 2698004), (316356, 2023503), (474534, 1349002), (674501, 949068)]