18339860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{11909}}^1$

素因数の和:11936

約数の個数: 48

約数和(自身を含む): 48021120

約数和(自身を除く): 29681260

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 11909, 23818, 47636, 59545, 83363, 119090, 130999, 166726, 238180, 261998, 333452, 416815, 523996, 654995, 833630, 916993, 1309990, 1667260, 1833986, 2619980, 3667972, 4584965, 9169930, 18339860]

約数ペア:

[(1, 18339860), (2, 9169930), (4, 4584965), (5, 3667972), (7, 2619980), (10, 1833986), (11, 1667260), (14, 1309990), (20, 916993), (22, 833630), (28, 654995), (35, 523996), (44, 416815), (55, 333452), (70, 261998), (77, 238180), (110, 166726), (140, 130999), (154, 119090), (220, 83363), (308, 59545), (385, 47636), (770, 23818), (1540, 11909)]