19411940

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1\times {\mathrm{193}}^1$

素因数の和:356

約数の個数: 48

約数和(自身を含む): 42239232

約数和(自身を除く): 22827292

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 107, 188, 193, 214, 235, 386, 428, 470, 535, 772, 940, 965, 1070, 1930, 2140, 3860, 5029, 9071, 10058, 18142, 20116, 20651, 25145, 36284, 41302, 45355, 50290, 82604, 90710, 100580, 103255, 181420, 206510, 413020, 970597, 1941194, 3882388, 4852985, 9705970, 19411940]

約数ペア:

[(1, 19411940), (2, 9705970), (4, 4852985), (5, 3882388), (10, 1941194), (20, 970597), (47, 413020), (94, 206510), (107, 181420), (188, 103255), (193, 100580), (214, 90710), (235, 82604), (386, 50290), (428, 45355), (470, 41302), (535, 36284), (772, 25145), (940, 20651), (965, 20116), (1070, 18142), (1930, 10058), (2140, 9071), (3860, 5029)]