79784020

素因数分解:

$2^2\times 5^1\times {\mathrm{1279}}^1\times {\mathrm{3119}}^1$

素因数の和:4407

約数の個数: 24

約数和(自身を含む): 167731200

約数和(自身を除く): 87947180

約数列:

[1, 2, 4, 5, 10, 20, 1279, 2558, 3119, 5116, 6238, 6395, 12476, 12790, 15595, 25580, 31190, 62380, 3989201, 7978402, 15956804, 19946005, 39892010, 79784020]

約数ペア:

[(1, 79784020), (2, 39892010), (4, 19946005), (5, 15956804), (10, 7978402), (20, 3989201), (1279, 62380), (2558, 31190), (3119, 25580), (5116, 15595), (6238, 12790), (6395, 12476)]