8854012390

素因数分解:

$2^1\times 5^1\times {\mathrm{1987}}^1\times {\mathrm{445597}}^1$

素因数の和:447591

約数の個数: 16

約数和(自身を含む): 15945278832

約数和(自身を除く): 7091266442

約数列:

[1, 2, 5, 10, 1987, 3974, 9935, 19870, 445597, 891194, 2227985, 4455970, 885401239, 1770802478, 4427006195, 8854012390]

約数ペア:

[(1, 8854012390), (2, 4427006195), (5, 1770802478), (10, 885401239), (1987, 4455970), (3974, 2227985), (9935, 891194), (19870, 445597)]