82780355

素因数分解:

$5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1$

素因数の和:300

約数の個数: 48

約数和(自身を含む): 122135040

約数和(自身を除く): 39354685

約数列:

[1, 5, 7, 29, 35, 49, 61, 145, 191, 203, 245, 305, 427, 955, 1015, 1337, 1421, 1769, 2135, 2989, 5539, 6685, 7105, 8845, 9359, 11651, 12383, 14945, 27695, 38773, 46795, 58255, 61915, 81557, 86681, 193865, 271411, 337879, 407785, 433405, 570899, 1357055, 1689395, 2365153, 2854495, 11825765, 16556071, 82780355]

約数ペア:

[(1, 82780355), (5, 16556071), (7, 11825765), (29, 2854495), (35, 2365153), (49, 1689395), (61, 1357055), (145, 570899), (191, 433405), (203, 407785), (245, 337879), (305, 271411), (427, 193865), (955, 86681), (1015, 81557), (1337, 61915), (1421, 58255), (1769, 46795), (2135, 38773), (2989, 27695), (5539, 14945), (6685, 12383), (7105, 11651), (8845, 9359)]