19270880

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2801}}^1$

素因数の和:2859

約数の個数: 48

約数和(自身を含む): 46602864

約数和(自身を除く): 27331984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 160, 172, 215, 344, 430, 688, 860, 1376, 1720, 2801, 3440, 5602, 6880, 11204, 14005, 22408, 28010, 44816, 56020, 89632, 112040, 120443, 224080, 240886, 448160, 481772, 602215, 963544, 1204430, 1927088, 2408860, 3854176, 4817720, 9635440, 19270880]

約数ペア:

[(1, 19270880), (2, 9635440), (4, 4817720), (5, 3854176), (8, 2408860), (10, 1927088), (16, 1204430), (20, 963544), (32, 602215), (40, 481772), (43, 448160), (80, 240886), (86, 224080), (160, 120443), (172, 112040), (215, 89632), (344, 56020), (430, 44816), (688, 28010), (860, 22408), (1376, 14005), (1720, 11204), (2801, 6880), (3440, 5602)]