19411480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{281}}^1$

素因数の和:460

約数の個数: 64

約数和(自身を含む): 48120480

約数和(自身を除く): 28709000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 157, 220, 281, 314, 440, 562, 628, 785, 1124, 1256, 1405, 1570, 1727, 2248, 2810, 3091, 3140, 3454, 5620, 6182, 6280, 6908, 8635, 11240, 12364, 13816, 15455, 17270, 24728, 30910, 34540, 44117, 61820, 69080, 88234, 123640, 176468, 220585, 352936, 441170, 485287, 882340, 970574, 1764680, 1941148, 2426435, 3882296, 4852870, 9705740, 19411480]

約数ペア:

[(1, 19411480), (2, 9705740), (4, 4852870), (5, 3882296), (8, 2426435), (10, 1941148), (11, 1764680), (20, 970574), (22, 882340), (40, 485287), (44, 441170), (55, 352936), (88, 220585), (110, 176468), (157, 123640), (220, 88234), (281, 69080), (314, 61820), (440, 44117), (562, 34540), (628, 30910), (785, 24728), (1124, 17270), (1256, 15455), (1405, 13816), (1570, 12364), (1727, 11240), (2248, 8635), (2810, 6908), (3091, 6280), (3140, 6182), (3454, 5620)]