20269920

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{349}}^1$

素因数の和:389

約数の個数: 144

約数和(自身を含む): 70383600

約数和(自身を除く): 50113680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 60, 66, 80, 88, 96, 110, 120, 121, 132, 160, 165, 176, 220, 240, 242, 264, 330, 349, 352, 363, 440, 480, 484, 528, 605, 660, 698, 726, 880, 968, 1047, 1056, 1210, 1320, 1396, 1452, 1745, 1760, 1815, 1936, 2094, 2420, 2640, 2792, 2904, 3490, 3630, 3839, 3872, 4188, 4840, 5235, 5280, 5584, 5808, 6980, 7260, 7678, 8376, 9680, 10470, 11168, 11517, 11616, 13960, 14520, 15356, 16752, 19195, 19360, 20940, 23034, 27920, 29040, 30712, 33504, 38390, 41880, 42229, 46068, 55840, 57585, 58080, 61424, 76780, 83760, 84458, 92136, 115170, 122848, 126687, 153560, 167520, 168916, 184272, 211145, 230340, 253374, 307120, 337832, 368544, 422290, 460680, 506748, 614240, 633435, 675664, 844580, 921360, 1013496, 1266870, 1351328, 1689160, 1842720, 2026992, 2533740, 3378320, 4053984, 5067480, 6756640, 10134960, 20269920]

約数ペア:

[(1, 20269920), (2, 10134960), (3, 6756640), (4, 5067480), (5, 4053984), (6, 3378320), (8, 2533740), (10, 2026992), (11, 1842720), (12, 1689160), (15, 1351328), (16, 1266870), (20, 1013496), (22, 921360), (24, 844580), (30, 675664), (32, 633435), (33, 614240), (40, 506748), (44, 460680), (48, 422290), (55, 368544), (60, 337832), (66, 307120), (80, 253374), (88, 230340), (96, 211145), (110, 184272), (120, 168916), (121, 167520), (132, 153560), (160, 126687), (165, 122848), (176, 115170), (220, 92136), (240, 84458), (242, 83760), (264, 76780), (330, 61424), (349, 58080), (352, 57585), (363, 55840), (440, 46068), (480, 42229), (484, 41880), (528, 38390), (605, 33504), (660, 30712), (698, 29040), (726, 27920), (880, 23034), (968, 20940), (1047, 19360), (1056, 19195), (1210, 16752), (1320, 15356), (1396, 14520), (1452, 13960), (1745, 11616), (1760, 11517), (1815, 11168), (1936, 10470), (2094, 9680), (2420, 8376), (2640, 7678), (2792, 7260), (2904, 6980), (3490, 5808), (3630, 5584), (3839, 5280), (3872, 5235), (4188, 4840)]