19446020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{563}}^1$

素因数の和:740

約数の個数: 48

約数和(自身を含む): 44912448

約数和(自身を除く): 25466428

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 157, 220, 314, 563, 628, 785, 1126, 1570, 1727, 2252, 2815, 3140, 3454, 5630, 6193, 6908, 8635, 11260, 12386, 17270, 24772, 30965, 34540, 61930, 88391, 123860, 176782, 353564, 441955, 883910, 972301, 1767820, 1944602, 3889204, 4861505, 9723010, 19446020]

約数ペア:

[(1, 19446020), (2, 9723010), (4, 4861505), (5, 3889204), (10, 1944602), (11, 1767820), (20, 972301), (22, 883910), (44, 441955), (55, 353564), (110, 176782), (157, 123860), (220, 88391), (314, 61930), (563, 34540), (628, 30965), (785, 24772), (1126, 17270), (1570, 12386), (1727, 11260), (2252, 8635), (2815, 6908), (3140, 6193), (3454, 5630)]