31813120

素因数分解:

$2^9\times 5^1\times {\mathrm{17}}^2\times {\mathrm{43}}^1$

素因数の和:100

約数の個数: 120

約数和(自身を含む): 82912104

約数和(自身を除く): 51098984

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 43, 64, 68, 80, 85, 86, 128, 136, 160, 170, 172, 215, 256, 272, 289, 320, 340, 344, 430, 512, 544, 578, 640, 680, 688, 731, 860, 1088, 1156, 1280, 1360, 1376, 1445, 1462, 1720, 2176, 2312, 2560, 2720, 2752, 2890, 2924, 3440, 3655, 4352, 4624, 5440, 5504, 5780, 5848, 6880, 7310, 8704, 9248, 10880, 11008, 11560, 11696, 12427, 13760, 14620, 18496, 21760, 22016, 23120, 23392, 24854, 27520, 29240, 36992, 43520, 46240, 46784, 49708, 55040, 58480, 62135, 73984, 92480, 93568, 99416, 110080, 116960, 124270, 147968, 184960, 187136, 198832, 233920, 248540, 369920, 374272, 397664, 467840, 497080, 739840, 795328, 935680, 994160, 1590656, 1871360, 1988320, 3181312, 3976640, 6362624, 7953280, 15906560, 31813120]

約数ペア:

[(1, 31813120), (2, 15906560), (4, 7953280), (5, 6362624), (8, 3976640), (10, 3181312), (16, 1988320), (17, 1871360), (20, 1590656), (32, 994160), (34, 935680), (40, 795328), (43, 739840), (64, 497080), (68, 467840), (80, 397664), (85, 374272), (86, 369920), (128, 248540), (136, 233920), (160, 198832), (170, 187136), (172, 184960), (215, 147968), (256, 124270), (272, 116960), (289, 110080), (320, 99416), (340, 93568), (344, 92480), (430, 73984), (512, 62135), (544, 58480), (578, 55040), (640, 49708), (680, 46784), (688, 46240), (731, 43520), (860, 36992), (1088, 29240), (1156, 27520), (1280, 24854), (1360, 23392), (1376, 23120), (1445, 22016), (1462, 21760), (1720, 18496), (2176, 14620), (2312, 13760), (2560, 12427), (2720, 11696), (2752, 11560), (2890, 11008), (2924, 10880), (3440, 9248), (3655, 8704), (4352, 7310), (4624, 6880), (5440, 5848), (5504, 5780)]