256353396

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{6653}}^1$

素因数の和:6705

約数の個数: 72

約数和(自身を含む): 681901920

約数和(自身を除く): 425548524

約数列:

[1, 2, 3, 4, 6, 12, 13, 19, 26, 38, 39, 52, 57, 76, 78, 114, 156, 169, 228, 247, 338, 494, 507, 676, 741, 988, 1014, 1482, 2028, 2964, 3211, 6422, 6653, 9633, 12844, 13306, 19266, 19959, 26612, 38532, 39918, 79836, 86489, 126407, 172978, 252814, 259467, 345956, 379221, 505628, 518934, 758442, 1037868, 1124357, 1516884, 1643291, 2248714, 3286582, 3373071, 4497428, 4929873, 6573164, 6746142, 9859746, 13492284, 19719492, 21362783, 42725566, 64088349, 85451132, 128176698, 256353396]

約数ペア:

[(1, 256353396), (2, 128176698), (3, 85451132), (4, 64088349), (6, 42725566), (12, 21362783), (13, 19719492), (19, 13492284), (26, 9859746), (38, 6746142), (39, 6573164), (52, 4929873), (57, 4497428), (76, 3373071), (78, 3286582), (114, 2248714), (156, 1643291), (169, 1516884), (228, 1124357), (247, 1037868), (338, 758442), (494, 518934), (507, 505628), (676, 379221), (741, 345956), (988, 259467), (1014, 252814), (1482, 172978), (2028, 126407), (2964, 86489), (3211, 79836), (6422, 39918), (6653, 38532), (9633, 26612), (12844, 19959), (13306, 19266)]