18345880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{65521}}^1$

素因数の和:65539

約数の個数: 32

約数和(自身を含む): 47175840

約数和(自身を除く): 28829960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 65521, 131042, 262084, 327605, 458647, 524168, 655210, 917294, 1310420, 1834588, 2293235, 2620840, 3669176, 4586470, 9172940, 18345880]

約数ペア:

[(1, 18345880), (2, 9172940), (4, 4586470), (5, 3669176), (7, 2620840), (8, 2293235), (10, 1834588), (14, 1310420), (20, 917294), (28, 655210), (35, 524168), (40, 458647), (56, 327605), (70, 262084), (140, 131042), (280, 65521)]