261902992

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{66271}}^1$

素因数の和:66311

約数の個数: 40

約数和(自身を含む): 575240960

約数和(自身を除く): 313337968

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 66271, 132542, 265084, 530168, 861523, 1060336, 1259149, 1723046, 2518298, 3446092, 5036596, 6892184, 10073192, 13784368, 16368937, 20146384, 32737874, 65475748, 130951496, 261902992]

約数ペア:

[(1, 261902992), (2, 130951496), (4, 65475748), (8, 32737874), (13, 20146384), (16, 16368937), (19, 13784368), (26, 10073192), (38, 6892184), (52, 5036596), (76, 3446092), (104, 2518298), (152, 1723046), (208, 1259149), (247, 1060336), (304, 861523), (494, 530168), (988, 265084), (1976, 132542), (3952, 66271)]