9780781635

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{68071}}^1$

素因数の和:68216

約数の個数: 48

約数和(自身を含む): 17670402048

約数和(自身を除く): 7889620413

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 103, 155, 279, 309, 465, 515, 927, 1395, 1545, 3193, 4635, 9579, 15965, 28737, 47895, 68071, 143685, 204213, 340355, 612639, 1021065, 2110201, 3063195, 6330603, 7011313, 10551005, 18991809, 21033939, 31653015, 35056565, 63101817, 94959045, 105169695, 217350703, 315509085, 652052109, 1086753515, 1956156327, 3260260545, 9780781635]

約数ペア:

[(1, 9780781635), (3, 3260260545), (5, 1956156327), (9, 1086753515), (15, 652052109), (31, 315509085), (45, 217350703), (93, 105169695), (103, 94959045), (155, 63101817), (279, 35056565), (309, 31653015), (465, 21033939), (515, 18991809), (927, 10551005), (1395, 7011313), (1545, 6330603), (3193, 3063195), (4635, 2110201), (9579, 1021065), (15965, 612639), (28737, 340355), (47895, 204213), (68071, 143685)]