278318515

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{191}}^1\times {\mathrm{12671}}^1$

素因数の和:12890

約数の個数: 16

約数和(自身を含む): 350355456

約数和(自身を除く): 72036941

約数列:

[1, 5, 23, 115, 191, 955, 4393, 12671, 21965, 63355, 291433, 1457165, 2420161, 12100805, 55663703, 278318515]

約数ペア:

[(1, 278318515), (5, 55663703), (23, 12100805), (115, 2420161), (191, 1457165), (955, 291433), (4393, 63355), (12671, 21965)]