396804580

素因数分解:

$2^2\times 5^1\times {\mathrm{1531}}^1\times {\mathrm{12959}}^1$

素因数の和:14499

約数の個数: 24

約数和(自身を含む): 833898240

約数和(自身を除く): 437093660

約数列:

[1, 2, 4, 5, 10, 20, 1531, 3062, 6124, 7655, 12959, 15310, 25918, 30620, 51836, 64795, 129590, 259180, 19840229, 39680458, 79360916, 99201145, 198402290, 396804580]

約数ペア:

[(1, 396804580), (2, 198402290), (4, 99201145), (5, 79360916), (10, 39680458), (20, 19840229), (1531, 259180), (3062, 129590), (6124, 64795), (7655, 51836), (12959, 30620), (15310, 25918)]