2011122925

素因数分解:

$5^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1217}}^1$

素因数の和:1331

約数の個数: 72

約数和(自身を含む): 3099176640

約数和(自身を除く): 1088053715

約数列:

[1, 5, 7, 19, 25, 35, 49, 71, 95, 133, 175, 245, 355, 475, 497, 665, 931, 1217, 1225, 1349, 1775, 2485, 3325, 3479, 4655, 6085, 6745, 8519, 9443, 12425, 17395, 23123, 23275, 30425, 33725, 42595, 47215, 59633, 66101, 86407, 86975, 115615, 161861, 212975, 236075, 298165, 330505, 432035, 578075, 604849, 809305, 1133027, 1490825, 1641733, 1652525, 2160175, 3024245, 4046525, 4233943, 5665135, 8208665, 11492131, 15121225, 21169715, 28325675, 41043325, 57460655, 80444917, 105848575, 287303275, 402224585, 2011122925]

約数ペア:

[(1, 2011122925), (5, 402224585), (7, 287303275), (19, 105848575), (25, 80444917), (35, 57460655), (49, 41043325), (71, 28325675), (95, 21169715), (133, 15121225), (175, 11492131), (245, 8208665), (355, 5665135), (475, 4233943), (497, 4046525), (665, 3024245), (931, 2160175), (1217, 1652525), (1225, 1641733), (1349, 1490825), (1775, 1133027), (2485, 809305), (3325, 604849), (3479, 578075), (4655, 432035), (6085, 330505), (6745, 298165), (8519, 236075), (9443, 212975), (12425, 161861), (17395, 115615), (23123, 86975), (23275, 86407), (30425, 66101), (33725, 59633), (42595, 47215)]