18420804860

素因数分解:

$2^2\times 5^1\times {\mathrm{5507}}^1\times {\mathrm{167249}}^1$

素因数の和:172765

約数の個数: 24

約数和(自身を含む): 38690946000

約数和(自身を除く): 20270141140

約数列:

[1, 2, 4, 5, 10, 20, 5507, 11014, 22028, 27535, 55070, 110140, 167249, 334498, 668996, 836245, 1672490, 3344980, 921040243, 1842080486, 3684160972, 4605201215, 9210402430, 18420804860]

約数ペア:

[(1, 18420804860), (2, 9210402430), (4, 4605201215), (5, 3684160972), (10, 1842080486), (20, 921040243), (5507, 3344980), (11014, 1672490), (22028, 836245), (27535, 668996), (55070, 334498), (110140, 167249)]