19369420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{4463}}^1$

素因数の和:4510

約数の個数: 48

約数和(自身を含む): 47996928

約数和(自身を除く): 28627508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 4463, 8926, 17852, 22315, 31241, 44630, 62482, 89260, 124964, 138353, 156205, 276706, 312410, 553412, 624820, 691765, 968471, 1383530, 1936942, 2767060, 3873884, 4842355, 9684710, 19369420]

約数ペア:

[(1, 19369420), (2, 9684710), (4, 4842355), (5, 3873884), (7, 2767060), (10, 1936942), (14, 1383530), (20, 968471), (28, 691765), (31, 624820), (35, 553412), (62, 312410), (70, 276706), (124, 156205), (140, 138353), (155, 124964), (217, 89260), (310, 62482), (434, 44630), (620, 31241), (868, 22315), (1085, 17852), (2170, 8926), (4340, 4463)]