20924640

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1321}}^1$

素因数の和:1353

約数の個数: 144

約数和(自身を含む): 77955696

約数和(自身を除く): 57031056

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 32, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 96, 99, 110, 120, 132, 144, 160, 165, 176, 180, 198, 220, 240, 264, 288, 330, 352, 360, 396, 440, 480, 495, 528, 660, 720, 792, 880, 990, 1056, 1320, 1321, 1440, 1584, 1760, 1980, 2640, 2642, 3168, 3960, 3963, 5280, 5284, 6605, 7920, 7926, 10568, 11889, 13210, 14531, 15840, 15852, 19815, 21136, 23778, 26420, 29062, 31704, 39630, 42272, 43593, 47556, 52840, 58124, 59445, 63408, 72655, 79260, 87186, 95112, 105680, 116248, 118890, 126816, 130779, 145310, 158520, 174372, 190224, 211360, 217965, 232496, 237780, 261558, 290620, 317040, 348744, 380448, 435930, 464992, 475560, 523116, 581240, 634080, 653895, 697488, 871860, 951120, 1046232, 1162480, 1307790, 1394976, 1743720, 1902240, 2092464, 2324960, 2615580, 3487440, 4184928, 5231160, 6974880, 10462320, 20924640]

約数ペア:

[(1, 20924640), (2, 10462320), (3, 6974880), (4, 5231160), (5, 4184928), (6, 3487440), (8, 2615580), (9, 2324960), (10, 2092464), (11, 1902240), (12, 1743720), (15, 1394976), (16, 1307790), (18, 1162480), (20, 1046232), (22, 951120), (24, 871860), (30, 697488), (32, 653895), (33, 634080), (36, 581240), (40, 523116), (44, 475560), (45, 464992), (48, 435930), (55, 380448), (60, 348744), (66, 317040), (72, 290620), (80, 261558), (88, 237780), (90, 232496), (96, 217965), (99, 211360), (110, 190224), (120, 174372), (132, 158520), (144, 145310), (160, 130779), (165, 126816), (176, 118890), (180, 116248), (198, 105680), (220, 95112), (240, 87186), (264, 79260), (288, 72655), (330, 63408), (352, 59445), (360, 58124), (396, 52840), (440, 47556), (480, 43593), (495, 42272), (528, 39630), (660, 31704), (720, 29062), (792, 26420), (880, 23778), (990, 21136), (1056, 19815), (1320, 15852), (1321, 15840), (1440, 14531), (1584, 13210), (1760, 11889), (1980, 10568), (2640, 7926), (2642, 7920), (3168, 6605), (3960, 5284), (3963, 5280)]