19986240

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{191}}^1$

素因数の和:320

約数の個数: 112

約数和(自身を含む): 64373760

約数和(自身を除く): 44387520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 109, 120, 160, 191, 192, 218, 240, 320, 327, 382, 436, 480, 545, 573, 654, 764, 872, 955, 960, 1090, 1146, 1308, 1528, 1635, 1744, 1910, 2180, 2292, 2616, 2865, 3056, 3270, 3488, 3820, 4360, 4584, 5232, 5730, 6112, 6540, 6976, 7640, 8720, 9168, 10464, 11460, 12224, 13080, 15280, 17440, 18336, 20819, 20928, 22920, 26160, 30560, 34880, 36672, 41638, 45840, 52320, 61120, 62457, 83276, 91680, 104095, 104640, 124914, 166552, 183360, 208190, 249828, 312285, 333104, 416380, 499656, 624570, 666208, 832760, 999312, 1249140, 1332416, 1665520, 1998624, 2498280, 3331040, 3997248, 4996560, 6662080, 9993120, 19986240]

約数ペア:

[(1, 19986240), (2, 9993120), (3, 6662080), (4, 4996560), (5, 3997248), (6, 3331040), (8, 2498280), (10, 1998624), (12, 1665520), (15, 1332416), (16, 1249140), (20, 999312), (24, 832760), (30, 666208), (32, 624570), (40, 499656), (48, 416380), (60, 333104), (64, 312285), (80, 249828), (96, 208190), (109, 183360), (120, 166552), (160, 124914), (191, 104640), (192, 104095), (218, 91680), (240, 83276), (320, 62457), (327, 61120), (382, 52320), (436, 45840), (480, 41638), (545, 36672), (573, 34880), (654, 30560), (764, 26160), (872, 22920), (955, 20928), (960, 20819), (1090, 18336), (1146, 17440), (1308, 15280), (1528, 13080), (1635, 12224), (1744, 11460), (1910, 10464), (2180, 9168), (2292, 8720), (2616, 7640), (2865, 6976), (3056, 6540), (3270, 6112), (3488, 5730), (3820, 5232), (4360, 4584)]