90281890

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{64951}}^1$

素因数の和:65097

約数の個数: 16

約数和(自身を含む): 163679040

約数和(自身を除く): 73397150

約数列:

[1, 2, 5, 10, 139, 278, 695, 1390, 64951, 129902, 324755, 649510, 9028189, 18056378, 45140945, 90281890]

約数ペア:

[(1, 90281890), (2, 45140945), (5, 18056378), (10, 9028189), (139, 649510), (278, 324755), (695, 129902), (1390, 64951)]