77642320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{138647}}^1$

素因数の和:138667

約数の個数: 40

約数和(自身を含む): 206308224

約数和(自身を除く): 128665904

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 138647, 277294, 554588, 693235, 970529, 1109176, 1386470, 1941058, 2218352, 2772940, 3882116, 4852645, 5545880, 7764232, 9705290, 11091760, 15528464, 19410580, 38821160, 77642320]

約数ペア:

[(1, 77642320), (2, 38821160), (4, 19410580), (5, 15528464), (7, 11091760), (8, 9705290), (10, 7764232), (14, 5545880), (16, 4852645), (20, 3882116), (28, 2772940), (35, 2218352), (40, 1941058), (56, 1386470), (70, 1109176), (80, 970529), (112, 693235), (140, 554588), (280, 277294), (560, 138647)]