19563440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1447}}^1$

素因数の和:1486

約数の個数: 60

約数和(自身を含む): 49287024

約数和(自身を除く): 29723584

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 169, 208, 260, 338, 520, 676, 845, 1040, 1352, 1447, 1690, 2704, 2894, 3380, 5788, 6760, 7235, 11576, 13520, 14470, 18811, 23152, 28940, 37622, 57880, 75244, 94055, 115760, 150488, 188110, 244543, 300976, 376220, 489086, 752440, 978172, 1222715, 1504880, 1956344, 2445430, 3912688, 4890860, 9781720, 19563440]

約数ペア:

[(1, 19563440), (2, 9781720), (4, 4890860), (5, 3912688), (8, 2445430), (10, 1956344), (13, 1504880), (16, 1222715), (20, 978172), (26, 752440), (40, 489086), (52, 376220), (65, 300976), (80, 244543), (104, 188110), (130, 150488), (169, 115760), (208, 94055), (260, 75244), (338, 57880), (520, 37622), (676, 28940), (845, 23152), (1040, 18811), (1352, 14470), (1447, 13520), (1690, 11576), (2704, 7235), (2894, 6760), (3380, 5788)]