19463990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{293}}^1$

素因数の和:393

約数の個数: 64

約数和(自身を含む): 43860096

約数和(自身を除く): 24396106

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 73, 91, 130, 146, 182, 293, 365, 455, 511, 586, 730, 910, 949, 1022, 1465, 1898, 2051, 2555, 2930, 3809, 4102, 4745, 5110, 6643, 7618, 9490, 10255, 13286, 19045, 20510, 21389, 26663, 33215, 38090, 42778, 53326, 66430, 106945, 133315, 149723, 213890, 266630, 278057, 299446, 556114, 748615, 1390285, 1497230, 1946399, 2780570, 3892798, 9731995, 19463990]

約数ペア:

[(1, 19463990), (2, 9731995), (5, 3892798), (7, 2780570), (10, 1946399), (13, 1497230), (14, 1390285), (26, 748615), (35, 556114), (65, 299446), (70, 278057), (73, 266630), (91, 213890), (130, 149723), (146, 133315), (182, 106945), (293, 66430), (365, 53326), (455, 42778), (511, 38090), (586, 33215), (730, 26663), (910, 21389), (949, 20510), (1022, 19045), (1465, 13286), (1898, 10255), (2051, 9490), (2555, 7618), (2930, 6643), (3809, 5110), (4102, 4745)]