256536710

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{25939}}^1$

素因数の和:26012

約数の個数: 32

約数和(自身を含む): 493067520

約数和(自身を除く): 236530810

約数列:

[1, 2, 5, 10, 23, 43, 46, 86, 115, 215, 230, 430, 989, 1978, 4945, 9890, 25939, 51878, 129695, 259390, 596597, 1115377, 1193194, 2230754, 2982985, 5576885, 5965970, 11153770, 25653671, 51307342, 128268355, 256536710]

約数ペア:

[(1, 256536710), (2, 128268355), (5, 51307342), (10, 25653671), (23, 11153770), (43, 5965970), (46, 5576885), (86, 2982985), (115, 2230754), (215, 1193194), (230, 1115377), (430, 596597), (989, 259390), (1978, 129695), (4945, 51878), (9890, 25939)]