28931434805

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{478087}}^1$

素因数の和:478138

約数の個数: 48

約数和(自身を含む): 45781706880

約数和(自身を除く): 16850272075

約数列:

[1, 5, 7, 13, 19, 35, 49, 65, 91, 95, 133, 245, 247, 455, 637, 665, 931, 1235, 1729, 3185, 4655, 8645, 12103, 60515, 478087, 2390435, 3346609, 6215131, 9083653, 16733045, 23426263, 31075655, 43505917, 45418265, 63585571, 117131315, 118087489, 217529585, 304541419, 317927855, 445098997, 590437445, 826612423, 1522707095, 2225494985, 4133062115, 5786286961, 28931434805]

約数ペア:

[(1, 28931434805), (5, 5786286961), (7, 4133062115), (13, 2225494985), (19, 1522707095), (35, 826612423), (49, 590437445), (65, 445098997), (91, 317927855), (95, 304541419), (133, 217529585), (245, 118087489), (247, 117131315), (455, 63585571), (637, 45418265), (665, 43505917), (931, 31075655), (1235, 23426263), (1729, 16733045), (3185, 9083653), (4655, 6215131), (8645, 3346609), (12103, 2390435), (60515, 478087)]