640323502

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3518261}}^1$

素因数の和:3518283

約数の個数: 16

約数和(自身を含む): 1182136032

約数和(自身を除く): 541812530

約数列:

[1, 2, 7, 13, 14, 26, 91, 182, 3518261, 7036522, 24627827, 45737393, 49255654, 91474786, 320161751, 640323502]

約数ペア:

[(1, 640323502), (2, 320161751), (7, 91474786), (13, 49255654), (14, 45737393), (26, 24627827), (91, 7036522), (182, 3518261)]