1388480140

素因数分解:

$2^2\times 5^1\times {\mathrm{1607}}^1\times {\mathrm{43201}}^1$

素因数の和:44817

約数の個数: 24

約数和(自身を含む): 2917690272

約数和(自身を除く): 1529210132

約数列:

[1, 2, 4, 5, 10, 20, 1607, 3214, 6428, 8035, 16070, 32140, 43201, 86402, 172804, 216005, 432010, 864020, 69424007, 138848014, 277696028, 347120035, 694240070, 1388480140]

約数ペア:

[(1, 1388480140), (2, 694240070), (4, 347120035), (5, 277696028), (10, 138848014), (20, 69424007), (1607, 864020), (3214, 432010), (6428, 216005), (8035, 172804), (16070, 86402), (32140, 43201)]