7128765

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:139

約数の個数: 72

約数和(自身を含む): 14885208

約数和(自身を除く): 7756443

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 53, 61, 63, 105, 147, 159, 183, 245, 265, 305, 315, 371, 427, 441, 477, 549, 735, 795, 915, 1113, 1281, 1855, 2135, 2205, 2385, 2597, 2745, 2989, 3233, 3339, 3843, 5565, 6405, 7791, 8967, 9699, 12985, 14945, 16165, 16695, 19215, 22631, 23373, 26901, 29097, 38955, 44835, 48495, 67893, 113155, 116865, 134505, 145485, 158417, 203679, 339465, 475251, 792085, 1018395, 1425753, 2376255, 7128765]

約数ペア:

[(1, 7128765), (3, 2376255), (5, 1425753), (7, 1018395), (9, 792085), (15, 475251), (21, 339465), (35, 203679), (45, 158417), (49, 145485), (53, 134505), (61, 116865), (63, 113155), (105, 67893), (147, 48495), (159, 44835), (183, 38955), (245, 29097), (265, 26901), (305, 23373), (315, 22631), (371, 19215), (427, 16695), (441, 16165), (477, 14945), (549, 12985), (735, 9699), (795, 8967), (915, 7791), (1113, 6405), (1281, 5565), (1855, 3843), (2135, 3339), (2205, 3233), (2385, 2989), (2597, 2745)]