21269760

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1$

素因数の和:244

約数の個数: 144

約数和(自身を含む): 70640640

約数和(自身を除く): 49370880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 29, 30, 32, 40, 48, 58, 60, 64, 80, 87, 96, 116, 120, 128, 145, 160, 174, 191, 192, 232, 240, 256, 290, 320, 348, 382, 384, 435, 464, 480, 573, 580, 640, 696, 764, 768, 870, 928, 955, 960, 1146, 1160, 1280, 1392, 1528, 1740, 1856, 1910, 1920, 2292, 2320, 2784, 2865, 3056, 3480, 3712, 3820, 3840, 4584, 4640, 5539, 5568, 5730, 6112, 6960, 7424, 7640, 9168, 9280, 11078, 11136, 11460, 12224, 13920, 15280, 16617, 18336, 18560, 22156, 22272, 22920, 24448, 27695, 27840, 30560, 33234, 36672, 37120, 44312, 45840, 48896, 55390, 55680, 61120, 66468, 73344, 83085, 88624, 91680, 110780, 111360, 122240, 132936, 146688, 166170, 177248, 183360, 221560, 244480, 265872, 332340, 354496, 366720, 443120, 531744, 664680, 708992, 733440, 886240, 1063488, 1329360, 1417984, 1772480, 2126976, 2658720, 3544960, 4253952, 5317440, 7089920, 10634880, 21269760]

約数ペア:

[(1, 21269760), (2, 10634880), (3, 7089920), (4, 5317440), (5, 4253952), (6, 3544960), (8, 2658720), (10, 2126976), (12, 1772480), (15, 1417984), (16, 1329360), (20, 1063488), (24, 886240), (29, 733440), (30, 708992), (32, 664680), (40, 531744), (48, 443120), (58, 366720), (60, 354496), (64, 332340), (80, 265872), (87, 244480), (96, 221560), (116, 183360), (120, 177248), (128, 166170), (145, 146688), (160, 132936), (174, 122240), (191, 111360), (192, 110780), (232, 91680), (240, 88624), (256, 83085), (290, 73344), (320, 66468), (348, 61120), (382, 55680), (384, 55390), (435, 48896), (464, 45840), (480, 44312), (573, 37120), (580, 36672), (640, 33234), (696, 30560), (764, 27840), (768, 27695), (870, 24448), (928, 22920), (955, 22272), (960, 22156), (1146, 18560), (1160, 18336), (1280, 16617), (1392, 15280), (1528, 13920), (1740, 12224), (1856, 11460), (1910, 11136), (1920, 11078), (2292, 9280), (2320, 9168), (2784, 7640), (2865, 7424), (3056, 6960), (3480, 6112), (3712, 5730), (3820, 5568), (3840, 5539), (4584, 4640)]