20743290

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{25609}}^1$

素因数の和:25628

約数の個数: 40

約数和(自身を含む): 55778580

約数和(自身を除く): 35035290

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810, 25609, 51218, 76827, 128045, 153654, 230481, 256090, 384135, 460962, 691443, 768270, 1152405, 1382886, 2074329, 2304810, 3457215, 4148658, 6914430, 10371645, 20743290]

約数ペア:

[(1, 20743290), (2, 10371645), (3, 6914430), (5, 4148658), (6, 3457215), (9, 2304810), (10, 2074329), (15, 1382886), (18, 1152405), (27, 768270), (30, 691443), (45, 460962), (54, 384135), (81, 256090), (90, 230481), (135, 153654), (162, 128045), (270, 76827), (405, 51218), (810, 25609)]