257070840

素因数分解:

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

素因数の和:164816

約数の個数: 64

約数和(自身を含む): 830541600

約数和(自身を除く): 573470760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 164789, 329578, 494367, 659156, 823945, 988734, 1318312, 1647890, 1977468, 2142257, 2471835, 3295780, 3954936, 4284514, 4943670, 6426771, 6591560, 8569028, 9887340, 10711285, 12853542, 17138056, 19774680, 21422570, 25707084, 32133855, 42845140, 51414168, 64267710, 85690280, 128535420, 257070840]

約数ペア:

[(1, 257070840), (2, 128535420), (3, 85690280), (4, 64267710), (5, 51414168), (6, 42845140), (8, 32133855), (10, 25707084), (12, 21422570), (13, 19774680), (15, 17138056), (20, 12853542), (24, 10711285), (26, 9887340), (30, 8569028), (39, 6591560), (40, 6426771), (52, 4943670), (60, 4284514), (65, 3954936), (78, 3295780), (104, 2471835), (120, 2142257), (130, 1977468), (156, 1647890), (195, 1318312), (260, 988734), (312, 823945), (390, 659156), (520, 494367), (780, 329578), (1560, 164789)]