8455720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1$

素因数の和:155

約数の個数: 128

約数和(自身を含む): 24675840

約数和(自身を除く): 16220120

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 23, 26, 28, 35, 40, 46, 52, 56, 65, 70, 91, 92, 101, 104, 115, 130, 140, 161, 182, 184, 202, 230, 260, 280, 299, 322, 364, 404, 455, 460, 505, 520, 598, 644, 707, 728, 805, 808, 910, 920, 1010, 1196, 1288, 1313, 1414, 1495, 1610, 1820, 2020, 2093, 2323, 2392, 2626, 2828, 2990, 3220, 3535, 3640, 4040, 4186, 4646, 5252, 5656, 5980, 6440, 6565, 7070, 8372, 9191, 9292, 10465, 10504, 11615, 11960, 13130, 14140, 16261, 16744, 18382, 18584, 20930, 23230, 26260, 28280, 30199, 32522, 36764, 41860, 45955, 46460, 52520, 60398, 65044, 73528, 81305, 83720, 91910, 92920, 120796, 130088, 150995, 162610, 183820, 211393, 241592, 301990, 325220, 367640, 422786, 603980, 650440, 845572, 1056965, 1207960, 1691144, 2113930, 4227860, 8455720]

約数ペア:

[(1, 8455720), (2, 4227860), (4, 2113930), (5, 1691144), (7, 1207960), (8, 1056965), (10, 845572), (13, 650440), (14, 603980), (20, 422786), (23, 367640), (26, 325220), (28, 301990), (35, 241592), (40, 211393), (46, 183820), (52, 162610), (56, 150995), (65, 130088), (70, 120796), (91, 92920), (92, 91910), (101, 83720), (104, 81305), (115, 73528), (130, 65044), (140, 60398), (161, 52520), (182, 46460), (184, 45955), (202, 41860), (230, 36764), (260, 32522), (280, 30199), (299, 28280), (322, 26260), (364, 23230), (404, 20930), (455, 18584), (460, 18382), (505, 16744), (520, 16261), (598, 14140), (644, 13130), (707, 11960), (728, 11615), (805, 10504), (808, 10465), (910, 9292), (920, 9191), (1010, 8372), (1196, 7070), (1288, 6565), (1313, 6440), (1414, 5980), (1495, 5656), (1610, 5252), (1820, 4646), (2020, 4186), (2093, 4040), (2323, 3640), (2392, 3535), (2626, 3220), (2828, 2990)]