28130284

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{709}}^1$

素因数の和:842

約数の個数: 48

約数和(自身を含む): 61230400

約数和(自身を除く): 33100116

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 109, 182, 218, 364, 436, 709, 763, 1417, 1418, 1526, 2834, 2836, 3052, 4963, 5668, 9217, 9919, 9926, 18434, 19838, 19852, 36868, 39676, 64519, 77281, 129038, 154562, 258076, 309124, 540967, 1004653, 1081934, 2009306, 2163868, 4018612, 7032571, 14065142, 28130284]

約数ペア:

[(1, 28130284), (2, 14065142), (4, 7032571), (7, 4018612), (13, 2163868), (14, 2009306), (26, 1081934), (28, 1004653), (52, 540967), (91, 309124), (109, 258076), (182, 154562), (218, 129038), (364, 77281), (436, 64519), (709, 39676), (763, 36868), (1417, 19852), (1418, 19838), (1526, 18434), (2834, 9926), (2836, 9919), (3052, 9217), (4963, 5668)]