20386804580

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{11453261}}^1$

素因数の和:11453359

約数の個数: 24

約数和(自身を含む): 43293330360

約数和(自身を除く): 22906525780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 11453261, 22906522, 45813044, 57266305, 114532610, 229065220, 1019340229, 2038680458, 4077360916, 5096701145, 10193402290, 20386804580]

約数ペア:

[(1, 20386804580), (2, 10193402290), (4, 5096701145), (5, 4077360916), (10, 2038680458), (20, 1019340229), (89, 229065220), (178, 114532610), (356, 57266305), (445, 45813044), (890, 22906522), (1780, 11453261)]