18243260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{311}}^1\times {\mathrm{419}}^1$

素因数の和:746

約数の個数: 48

約数和(自身を含む): 44029440

約数和(自身を除く): 25786180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 311, 419, 622, 838, 1244, 1555, 1676, 2095, 2177, 2933, 3110, 4190, 4354, 5866, 6220, 8380, 8708, 10885, 11732, 14665, 21770, 29330, 43540, 58660, 130309, 260618, 521236, 651545, 912163, 1303090, 1824326, 2606180, 3648652, 4560815, 9121630, 18243260]

約数ペア:

[(1, 18243260), (2, 9121630), (4, 4560815), (5, 3648652), (7, 2606180), (10, 1824326), (14, 1303090), (20, 912163), (28, 651545), (35, 521236), (70, 260618), (140, 130309), (311, 58660), (419, 43540), (622, 29330), (838, 21770), (1244, 14665), (1555, 11732), (1676, 10885), (2095, 8708), (2177, 8380), (2933, 6220), (3110, 5866), (4190, 4354)]