28789920

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{19993}}^1$

素因数の和:20014

約数の個数: 72

約数和(自身を含む): 98250516

約数和(自身を除く): 69460596

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 19993, 39986, 59979, 79972, 99965, 119958, 159944, 179937, 199930, 239916, 299895, 319888, 359874, 399860, 479832, 599790, 639776, 719748, 799720, 899685, 959664, 1199580, 1439496, 1599440, 1799370, 1919328, 2399160, 2878992, 3198880, 3598740, 4798320, 5757984, 7197480, 9596640, 14394960, 28789920]

約数ペア:

[(1, 28789920), (2, 14394960), (3, 9596640), (4, 7197480), (5, 5757984), (6, 4798320), (8, 3598740), (9, 3198880), (10, 2878992), (12, 2399160), (15, 1919328), (16, 1799370), (18, 1599440), (20, 1439496), (24, 1199580), (30, 959664), (32, 899685), (36, 799720), (40, 719748), (45, 639776), (48, 599790), (60, 479832), (72, 399860), (80, 359874), (90, 319888), (96, 299895), (120, 239916), (144, 199930), (160, 179937), (180, 159944), (240, 119958), (288, 99965), (360, 79972), (480, 59979), (720, 39986), (1440, 19993)]