19347100

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{79}}^2$

素因数の和:203

約数の個数: 54

約数和(自身を含む): 43893024

約数和(自身を除く): 24545924

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 79, 100, 124, 155, 158, 310, 316, 395, 620, 775, 790, 1550, 1580, 1975, 2449, 3100, 3950, 4898, 6241, 7900, 9796, 12245, 12482, 24490, 24964, 31205, 48980, 61225, 62410, 122450, 124820, 156025, 193471, 244900, 312050, 386942, 624100, 773884, 967355, 1934710, 3869420, 4836775, 9673550, 19347100]

約数ペア:

[(1, 19347100), (2, 9673550), (4, 4836775), (5, 3869420), (10, 1934710), (20, 967355), (25, 773884), (31, 624100), (50, 386942), (62, 312050), (79, 244900), (100, 193471), (124, 156025), (155, 124820), (158, 122450), (310, 62410), (316, 61225), (395, 48980), (620, 31205), (775, 24964), (790, 24490), (1550, 12482), (1580, 12245), (1975, 9796), (2449, 7900), (3100, 6241), (3950, 4898)]