7890367990

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{390419}}^1$

素因数の和:390516

約数の個数: 32

約数和(自身を含む): 14842206720

約数和(自身を除く): 6951838730

約数列:

[1, 2, 5, 10, 43, 47, 86, 94, 215, 235, 430, 470, 2021, 4042, 10105, 20210, 390419, 780838, 1952095, 3904190, 16788017, 18349693, 33576034, 36699386, 83940085, 91748465, 167880170, 183496930, 789036799, 1578073598, 3945183995, 7890367990]

約数ペア:

[(1, 7890367990), (2, 3945183995), (5, 1578073598), (10, 789036799), (43, 183496930), (47, 167880170), (86, 91748465), (94, 83940085), (215, 36699386), (235, 33576034), (430, 18349693), (470, 16788017), (2021, 3904190), (4042, 1952095), (10105, 780838), (20210, 390419)]