19040540

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{15607}}^1$

素因数の和:15677

約数の個数: 24

約数和(自身を含む): 40643232

約数和(自身を除く): 21602692

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 15607, 31214, 62428, 78035, 156070, 312140, 952027, 1904054, 3808108, 4760135, 9520270, 19040540]

約数ペア:

[(1, 19040540), (2, 9520270), (4, 4760135), (5, 3808108), (10, 1904054), (20, 952027), (61, 312140), (122, 156070), (244, 78035), (305, 62428), (610, 31214), (1220, 15607)]