19441760

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{719}}^1$

素因数の和:760

約数の個数: 72

約数和(自身を含む): 49805280

約数和(自身を除く): 30363520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 169, 208, 260, 338, 416, 520, 676, 719, 845, 1040, 1352, 1438, 1690, 2080, 2704, 2876, 3380, 3595, 5408, 5752, 6760, 7190, 9347, 11504, 13520, 14380, 18694, 23008, 27040, 28760, 37388, 46735, 57520, 74776, 93470, 115040, 121511, 149552, 186940, 243022, 299104, 373880, 486044, 607555, 747760, 972088, 1215110, 1495520, 1944176, 2430220, 3888352, 4860440, 9720880, 19441760]

約数ペア:

[(1, 19441760), (2, 9720880), (4, 4860440), (5, 3888352), (8, 2430220), (10, 1944176), (13, 1495520), (16, 1215110), (20, 972088), (26, 747760), (32, 607555), (40, 486044), (52, 373880), (65, 299104), (80, 243022), (104, 186940), (130, 149552), (160, 121511), (169, 115040), (208, 93470), (260, 74776), (338, 57520), (416, 46735), (520, 37388), (676, 28760), (719, 27040), (845, 23008), (1040, 18694), (1352, 14380), (1438, 13520), (1690, 11504), (2080, 9347), (2704, 7190), (2876, 6760), (3380, 5752), (3595, 5408)]