6440380

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{5279}}^1$

素因数の和:5349

約数の個数: 24

約数和(自身を含む): 13749120

約数和(自身を除く): 7308740

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 5279, 10558, 21116, 26395, 52790, 105580, 322019, 644038, 1288076, 1610095, 3220190, 6440380]

約数ペア:

[(1, 6440380), (2, 3220190), (4, 1610095), (5, 1288076), (10, 644038), (20, 322019), (61, 105580), (122, 52790), (244, 26395), (305, 21116), (610, 10558), (1220, 5279)]