128535420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{164789}}^1$

素因数の和:164814

約数の個数: 48

約数和(自身を含む): 387586080

約数和(自身を除く): 259050660

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 164789, 329578, 494367, 659156, 823945, 988734, 1647890, 1977468, 2142257, 2471835, 3295780, 4284514, 4943670, 6426771, 8569028, 9887340, 10711285, 12853542, 21422570, 25707084, 32133855, 42845140, 64267710, 128535420]

約数ペア:

[(1, 128535420), (2, 64267710), (3, 42845140), (4, 32133855), (5, 25707084), (6, 21422570), (10, 12853542), (12, 10711285), (13, 9887340), (15, 8569028), (20, 6426771), (26, 4943670), (30, 4284514), (39, 3295780), (52, 2471835), (60, 2142257), (65, 1977468), (78, 1647890), (130, 988734), (156, 823945), (195, 659156), (260, 494367), (390, 329578), (780, 164789)]