231781840

素因数分解:

$2^4\times 5^1\times {\mathrm{2897273}}^1$

素因数の和:2897286

約数の個数: 20

約数和(自身を含む): 538892964

約数和(自身を除く): 307111124

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2897273, 5794546, 11589092, 14486365, 23178184, 28972730, 46356368, 57945460, 115890920, 231781840]

約数ペア:

[(1, 231781840), (2, 115890920), (4, 57945460), (5, 46356368), (8, 28972730), (10, 23178184), (16, 14486365), (20, 11589092), (40, 5794546), (80, 2897273)]