209655420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{268789}}^1$

素因数の和:268814

約数の個数: 48

約数和(自身を含む): 632194080

約数和(自身を除く): 422538660

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, 268789, 537578, 806367, 1075156, 1343945, 1612734, 2687890, 3225468, 3494257, 4031835, 5375780, 6988514, 8063670, 10482771, 13977028, 16127340, 17471285, 20965542, 34942570, 41931084, 52413855, 69885140, 104827710, 209655420]

約数ペア:

[(1, 209655420), (2, 104827710), (3, 69885140), (4, 52413855), (5, 41931084), (6, 34942570), (10, 20965542), (12, 17471285), (13, 16127340), (15, 13977028), (20, 10482771), (26, 8063670), (30, 6988514), (39, 5375780), (52, 4031835), (60, 3494257), (65, 3225468), (78, 2687890), (130, 1612734), (156, 1343945), (195, 1075156), (260, 806367), (390, 537578), (780, 268789)]