20894720

素因数分解:

$2^{10}\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1$

素因数の和:96

約数の個数: 176

約数和(自身を含む): 63669888

約数和(自身を除く): 42775168

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 53, 55, 56, 64, 70, 77, 80, 88, 106, 110, 112, 128, 140, 154, 160, 176, 212, 220, 224, 256, 265, 280, 308, 320, 352, 371, 385, 424, 440, 448, 512, 530, 560, 583, 616, 640, 704, 742, 770, 848, 880, 896, 1024, 1060, 1120, 1166, 1232, 1280, 1408, 1484, 1540, 1696, 1760, 1792, 1855, 2120, 2240, 2332, 2464, 2560, 2816, 2915, 2968, 3080, 3392, 3520, 3584, 3710, 4081, 4240, 4480, 4664, 4928, 5120, 5632, 5830, 5936, 6160, 6784, 7040, 7168, 7420, 8162, 8480, 8960, 9328, 9856, 11264, 11660, 11872, 12320, 13568, 14080, 14840, 16324, 16960, 17920, 18656, 19712, 20405, 23320, 23744, 24640, 27136, 28160, 29680, 32648, 33920, 35840, 37312, 39424, 40810, 46640, 47488, 49280, 54272, 56320, 59360, 65296, 67840, 74624, 78848, 81620, 93280, 94976, 98560, 118720, 130592, 135680, 149248, 163240, 186560, 189952, 197120, 237440, 261184, 271360, 298496, 326480, 373120, 379904, 394240, 474880, 522368, 596992, 652960, 746240, 949760, 1044736, 1305920, 1492480, 1899520, 2089472, 2611840, 2984960, 4178944, 5223680, 10447360, 20894720]

約数ペア:

[(1, 20894720), (2, 10447360), (4, 5223680), (5, 4178944), (7, 2984960), (8, 2611840), (10, 2089472), (11, 1899520), (14, 1492480), (16, 1305920), (20, 1044736), (22, 949760), (28, 746240), (32, 652960), (35, 596992), (40, 522368), (44, 474880), (53, 394240), (55, 379904), (56, 373120), (64, 326480), (70, 298496), (77, 271360), (80, 261184), (88, 237440), (106, 197120), (110, 189952), (112, 186560), (128, 163240), (140, 149248), (154, 135680), (160, 130592), (176, 118720), (212, 98560), (220, 94976), (224, 93280), (256, 81620), (265, 78848), (280, 74624), (308, 67840), (320, 65296), (352, 59360), (371, 56320), (385, 54272), (424, 49280), (440, 47488), (448, 46640), (512, 40810), (530, 39424), (560, 37312), (583, 35840), (616, 33920), (640, 32648), (704, 29680), (742, 28160), (770, 27136), (848, 24640), (880, 23744), (896, 23320), (1024, 20405), (1060, 19712), (1120, 18656), (1166, 17920), (1232, 16960), (1280, 16324), (1408, 14840), (1484, 14080), (1540, 13568), (1696, 12320), (1760, 11872), (1792, 11660), (1855, 11264), (2120, 9856), (2240, 9328), (2332, 8960), (2464, 8480), (2560, 8162), (2816, 7420), (2915, 7168), (2968, 7040), (3080, 6784), (3392, 6160), (3520, 5936), (3584, 5830), (3710, 5632), (4081, 5120), (4240, 4928), (4480, 4664)]