21952560

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{179}}^1$

素因数の和:275

約数の個数: 160

約数和(自身を含む): 79280640

約数和(自身を除く): 57328080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 73, 80, 84, 105, 112, 120, 140, 146, 168, 179, 210, 219, 240, 280, 292, 336, 358, 365, 420, 438, 511, 537, 560, 584, 716, 730, 840, 876, 895, 1022, 1074, 1095, 1168, 1253, 1432, 1460, 1533, 1680, 1752, 1790, 2044, 2148, 2190, 2506, 2555, 2685, 2864, 2920, 3066, 3504, 3580, 3759, 4088, 4296, 4380, 5012, 5110, 5370, 5840, 6132, 6265, 7160, 7518, 7665, 8176, 8592, 8760, 10024, 10220, 10740, 12264, 12530, 13067, 14320, 15036, 15330, 17520, 18795, 20048, 20440, 21480, 24528, 25060, 26134, 30072, 30660, 37590, 39201, 40880, 42960, 50120, 52268, 60144, 61320, 65335, 75180, 78402, 91469, 100240, 104536, 122640, 130670, 150360, 156804, 182938, 196005, 209072, 261340, 274407, 300720, 313608, 365876, 392010, 457345, 522680, 548814, 627216, 731752, 784020, 914690, 1045360, 1097628, 1372035, 1463504, 1568040, 1829380, 2195256, 2744070, 3136080, 3658760, 4390512, 5488140, 7317520, 10976280, 21952560]

約数ペア:

[(1, 21952560), (2, 10976280), (3, 7317520), (4, 5488140), (5, 4390512), (6, 3658760), (7, 3136080), (8, 2744070), (10, 2195256), (12, 1829380), (14, 1568040), (15, 1463504), (16, 1372035), (20, 1097628), (21, 1045360), (24, 914690), (28, 784020), (30, 731752), (35, 627216), (40, 548814), (42, 522680), (48, 457345), (56, 392010), (60, 365876), (70, 313608), (73, 300720), (80, 274407), (84, 261340), (105, 209072), (112, 196005), (120, 182938), (140, 156804), (146, 150360), (168, 130670), (179, 122640), (210, 104536), (219, 100240), (240, 91469), (280, 78402), (292, 75180), (336, 65335), (358, 61320), (365, 60144), (420, 52268), (438, 50120), (511, 42960), (537, 40880), (560, 39201), (584, 37590), (716, 30660), (730, 30072), (840, 26134), (876, 25060), (895, 24528), (1022, 21480), (1074, 20440), (1095, 20048), (1168, 18795), (1253, 17520), (1432, 15330), (1460, 15036), (1533, 14320), (1680, 13067), (1752, 12530), (1790, 12264), (2044, 10740), (2148, 10220), (2190, 10024), (2506, 8760), (2555, 8592), (2685, 8176), (2864, 7665), (2920, 7518), (3066, 7160), (3504, 6265), (3580, 6132), (3759, 5840), (4088, 5370), (4296, 5110), (4380, 5012)]