19105520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{313}}^1$

素因数の和:442

約数の個数: 80

約数和(自身を含む): 51395520

約数和(自身を除く): 32290000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 109, 112, 140, 218, 280, 313, 436, 545, 560, 626, 763, 872, 1090, 1252, 1526, 1565, 1744, 2180, 2191, 2504, 3052, 3130, 3815, 4360, 4382, 5008, 6104, 6260, 7630, 8720, 8764, 10955, 12208, 12520, 15260, 17528, 21910, 25040, 30520, 34117, 35056, 43820, 61040, 68234, 87640, 136468, 170585, 175280, 238819, 272936, 341170, 477638, 545872, 682340, 955276, 1194095, 1364680, 1910552, 2388190, 2729360, 3821104, 4776380, 9552760, 19105520]

約数ペア:

[(1, 19105520), (2, 9552760), (4, 4776380), (5, 3821104), (7, 2729360), (8, 2388190), (10, 1910552), (14, 1364680), (16, 1194095), (20, 955276), (28, 682340), (35, 545872), (40, 477638), (56, 341170), (70, 272936), (80, 238819), (109, 175280), (112, 170585), (140, 136468), (218, 87640), (280, 68234), (313, 61040), (436, 43820), (545, 35056), (560, 34117), (626, 30520), (763, 25040), (872, 21910), (1090, 17528), (1252, 15260), (1526, 12520), (1565, 12208), (1744, 10955), (2180, 8764), (2191, 8720), (2504, 7630), (3052, 6260), (3130, 6104), (3815, 5008), (4360, 4382)]