64778380

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{28663}}^1$

素因数の和:28785

約数の個数: 24

約数和(自身を含む): 137243232

約数和(自身を除く): 72464852

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 28663, 57326, 114652, 143315, 286630, 573260, 3238919, 6477838, 12955676, 16194595, 32389190, 64778380]

約数ペア:

[(1, 64778380), (2, 32389190), (4, 16194595), (5, 12955676), (10, 6477838), (20, 3238919), (113, 573260), (226, 286630), (452, 143315), (565, 114652), (1130, 57326), (2260, 28663)]