1881940

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{1289}}^1$

素因数の和:1371

約数の個数: 24

約数和(自身を含む): 4009320

約数和(自身を除く): 2127380

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1289, 1460, 2578, 5156, 6445, 12890, 25780, 94097, 188194, 376388, 470485, 940970, 1881940]

約数ペア:

[(1, 1881940), (2, 940970), (4, 470485), (5, 376388), (10, 188194), (20, 94097), (73, 25780), (146, 12890), (292, 6445), (365, 5156), (730, 2578), (1289, 1460)]