20189029275

素因数分解:

$3^5\times 5^2\times {\mathrm{71}}^1\times {\mathrm{46807}}^1$

素因数の和:46903

約数の個数: 72

約数和(自身を含む): 38029065984

約数和(自身を除く): 17840036709

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 71, 75, 81, 135, 213, 225, 243, 355, 405, 639, 675, 1065, 1215, 1775, 1917, 2025, 3195, 5325, 5751, 6075, 9585, 15975, 17253, 28755, 46807, 47925, 86265, 140421, 143775, 234035, 421263, 431325, 702105, 1170175, 1263789, 2106315, 3323297, 3510525, 3791367, 6318945, 9969891, 10531575, 11374101, 16616485, 18956835, 29909673, 31594725, 49849455, 56870505, 83082425, 89729019, 94784175, 149548365, 249247275, 269187057, 284352525, 448645095, 747741825, 807561171, 1345935285, 2243225475, 4037805855, 6729676425, 20189029275]

約数ペア:

[(1, 20189029275), (3, 6729676425), (5, 4037805855), (9, 2243225475), (15, 1345935285), (25, 807561171), (27, 747741825), (45, 448645095), (71, 284352525), (75, 269187057), (81, 249247275), (135, 149548365), (213, 94784175), (225, 89729019), (243, 83082425), (355, 56870505), (405, 49849455), (639, 31594725), (675, 29909673), (1065, 18956835), (1215, 16616485), (1775, 11374101), (1917, 10531575), (2025, 9969891), (3195, 6318945), (5325, 3791367), (5751, 3510525), (6075, 3323297), (9585, 2106315), (15975, 1263789), (17253, 1170175), (28755, 702105), (46807, 431325), (47925, 421263), (86265, 234035), (140421, 143775)]