20945295

素因数分解:

$3^2\times 5^1\times 7^3\times {\mathrm{23}}^1\times {\mathrm{59}}^1$

素因数の和:114

約数の個数: 96

約数和(自身を含む): 44928000

約数和(自身を除く): 23982705

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 35, 45, 49, 59, 63, 69, 105, 115, 147, 161, 177, 207, 245, 295, 315, 343, 345, 413, 441, 483, 531, 735, 805, 885, 1029, 1035, 1127, 1239, 1357, 1449, 1715, 2065, 2205, 2415, 2655, 2891, 3087, 3381, 3717, 4071, 5145, 5635, 6195, 6785, 7245, 7889, 8673, 9499, 10143, 12213, 14455, 15435, 16905, 18585, 20237, 20355, 23667, 26019, 28497, 39445, 43365, 47495, 50715, 60711, 61065, 66493, 71001, 85491, 101185, 118335, 130095, 142485, 182133, 199479, 303555, 332465, 355005, 427455, 465451, 598437, 910665, 997395, 1396353, 2327255, 2992185, 4189059, 6981765, 20945295]

約数ペア:

[(1, 20945295), (3, 6981765), (5, 4189059), (7, 2992185), (9, 2327255), (15, 1396353), (21, 997395), (23, 910665), (35, 598437), (45, 465451), (49, 427455), (59, 355005), (63, 332465), (69, 303555), (105, 199479), (115, 182133), (147, 142485), (161, 130095), (177, 118335), (207, 101185), (245, 85491), (295, 71001), (315, 66493), (343, 61065), (345, 60711), (413, 50715), (441, 47495), (483, 43365), (531, 39445), (735, 28497), (805, 26019), (885, 23667), (1029, 20355), (1035, 20237), (1127, 18585), (1239, 16905), (1357, 15435), (1449, 14455), (1715, 12213), (2065, 10143), (2205, 9499), (2415, 8673), (2655, 7889), (2891, 7245), (3087, 6785), (3381, 6195), (3717, 5635), (4071, 5145)]