28055755

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{313}}^1$

素因数の和:535

約数の個数: 32

約数和(自身を含む): 41779584

約数和(自身を除く): 13723829

約数列:

[1, 5, 7, 13, 35, 65, 91, 197, 313, 455, 985, 1379, 1565, 2191, 2561, 4069, 6895, 10955, 12805, 17927, 20345, 28483, 61661, 89635, 142415, 308305, 431627, 801593, 2158135, 4007965, 5611151, 28055755]

約数ペア:

[(1, 28055755), (5, 5611151), (7, 4007965), (13, 2158135), (35, 801593), (65, 431627), (91, 308305), (197, 142415), (313, 89635), (455, 61661), (985, 28483), (1379, 20345), (1565, 17927), (2191, 12805), (2561, 10955), (4069, 6895)]