30905955

素因数分解:

$3^6\times 5^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:223

約数の個数: 56

約数和(自身を含む): 56923440

約数和(自身を除く): 26017485

約数列:

[1, 3, 5, 9, 15, 27, 45, 61, 81, 135, 139, 183, 243, 305, 405, 417, 549, 695, 729, 915, 1215, 1251, 1647, 2085, 2745, 3645, 3753, 4941, 6255, 8235, 8479, 11259, 14823, 18765, 24705, 25437, 33777, 42395, 44469, 56295, 74115, 76311, 101331, 127185, 168885, 222345, 228933, 381555, 506655, 686799, 1144665, 2060397, 3433995, 6181191, 10301985, 30905955]

約数ペア:

[(1, 30905955), (3, 10301985), (5, 6181191), (9, 3433995), (15, 2060397), (27, 1144665), (45, 686799), (61, 506655), (81, 381555), (135, 228933), (139, 222345), (183, 168885), (243, 127185), (305, 101331), (405, 76311), (417, 74115), (549, 56295), (695, 44469), (729, 42395), (915, 33777), (1215, 25437), (1251, 24705), (1647, 18765), (2085, 14823), (2745, 11259), (3645, 8479), (3753, 8235), (4941, 6255)]