19219700

素因数分解:

$2^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{2707}}^1$

素因数の和:2792

約数の個数: 36

約数和(自身を含む): 42309792

約数和(自身を除く): 23090092

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 100, 142, 284, 355, 710, 1420, 1775, 2707, 3550, 5414, 7100, 10828, 13535, 27070, 54140, 67675, 135350, 192197, 270700, 384394, 768788, 960985, 1921970, 3843940, 4804925, 9609850, 19219700]

約数ペア:

[(1, 19219700), (2, 9609850), (4, 4804925), (5, 3843940), (10, 1921970), (20, 960985), (25, 768788), (50, 384394), (71, 270700), (100, 192197), (142, 135350), (284, 67675), (355, 54140), (710, 27070), (1420, 13535), (1775, 10828), (2707, 7100), (3550, 5414)]