1387120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{2477}}^1$

素因数の和:2497

約数の個数: 40

約数和(自身を含む): 3687264

約数和(自身を除く): 2300144

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 2477, 4954, 9908, 12385, 17339, 19816, 24770, 34678, 39632, 49540, 69356, 86695, 99080, 138712, 173390, 198160, 277424, 346780, 693560, 1387120]

約数ペア:

[(1, 1387120), (2, 693560), (4, 346780), (5, 277424), (7, 198160), (8, 173390), (10, 138712), (14, 99080), (16, 86695), (20, 69356), (28, 49540), (35, 39632), (40, 34678), (56, 24770), (70, 19816), (80, 17339), (112, 12385), (140, 9908), (280, 4954), (560, 2477)]