16980515

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{181}}^1\times {\mathrm{647}}^1$

素因数の和:862

約数の個数: 16

約数和(自身を含む): 21228480

約数和(自身を除く): 4247965

約数列:

[1, 5, 29, 145, 181, 647, 905, 3235, 5249, 18763, 26245, 93815, 117107, 585535, 3396103, 16980515]

約数ペア:

[(1, 16980515), (5, 3396103), (29, 585535), (145, 117107), (181, 93815), (647, 26245), (905, 18763), (3235, 5249)]