8139520

素因数分解:

$2^8\times 5^1\times {\mathrm{6359}}^1$

素因数の和:6380

約数の個数: 36

約数和(自身を含む): 19499760

約数和(自身を除く): 11360240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 6359, 12718, 25436, 31795, 50872, 63590, 101744, 127180, 203488, 254360, 406976, 508720, 813952, 1017440, 1627904, 2034880, 4069760, 8139520]

約数ペア:

[(1, 8139520), (2, 4069760), (4, 2034880), (5, 1627904), (8, 1017440), (10, 813952), (16, 508720), (20, 406976), (32, 254360), (40, 203488), (64, 127180), (80, 101744), (128, 63590), (160, 50872), (256, 31795), (320, 25436), (640, 12718), (1280, 6359)]