19255980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{487}}^1\times {\mathrm{659}}^1$

素因数の和:1158

約数の個数: 48

約数和(自身を含む): 54109440

約数和(自身を除く): 34853460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 487, 659, 974, 1318, 1461, 1948, 1977, 2435, 2636, 2922, 3295, 3954, 4870, 5844, 6590, 7305, 7908, 9740, 9885, 13180, 14610, 19770, 29220, 39540, 320933, 641866, 962799, 1283732, 1604665, 1925598, 3209330, 3851196, 4813995, 6418660, 9627990, 19255980]

約数ペア:

[(1, 19255980), (2, 9627990), (3, 6418660), (4, 4813995), (5, 3851196), (6, 3209330), (10, 1925598), (12, 1604665), (15, 1283732), (20, 962799), (30, 641866), (60, 320933), (487, 39540), (659, 29220), (974, 19770), (1318, 14610), (1461, 13180), (1948, 9885), (1977, 9740), (2435, 7908), (2636, 7305), (2922, 6590), (3295, 5844), (3954, 4870)]