402900940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1549619}}^1$

素因数の和:1549641

約数の個数: 24

約数和(自身を含む): 911176560

約数和(自身を除く): 508275620

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1549619, 3099238, 6198476, 7748095, 15496190, 20145047, 30992380, 40290094, 80580188, 100725235, 201450470, 402900940]

約数ペア:

[(1, 402900940), (2, 201450470), (4, 100725235), (5, 80580188), (10, 40290094), (13, 30992380), (20, 20145047), (26, 15496190), (52, 7748095), (65, 6198476), (130, 3099238), (260, 1549619)]