81971895

素因数分解:

$3^1\times 5^1\times {\mathrm{113}}^1\times {\mathrm{137}}^1\times {\mathrm{353}}^1$

素因数の和:611

約数の個数: 32

約数和(自身を含む): 133659072

約数和(自身を除く): 51687177

約数列:

[1, 3, 5, 15, 113, 137, 339, 353, 411, 565, 685, 1059, 1695, 1765, 2055, 5295, 15481, 39889, 46443, 48361, 77405, 119667, 145083, 199445, 232215, 241805, 598335, 725415, 5464793, 16394379, 27323965, 81971895]

約数ペア:

[(1, 81971895), (3, 27323965), (5, 16394379), (15, 5464793), (113, 725415), (137, 598335), (339, 241805), (353, 232215), (411, 199445), (565, 145083), (685, 119667), (1059, 77405), (1695, 48361), (1765, 46443), (2055, 39889), (5295, 15481)]