28729805

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{541}}^1$

素因数の和:621

約数の個数: 32

約数和(自身を含む): 40064640

約数和(自身を除く): 11334835

約数列:

[1, 5, 13, 19, 43, 65, 95, 215, 247, 541, 559, 817, 1235, 2705, 2795, 4085, 7033, 10279, 10621, 23263, 35165, 51395, 53105, 116315, 133627, 302419, 441997, 668135, 1512095, 2209985, 5745961, 28729805]

約数ペア:

[(1, 28729805), (5, 5745961), (13, 2209985), (19, 1512095), (43, 668135), (65, 441997), (95, 302419), (215, 133627), (247, 116315), (541, 53105), (559, 51395), (817, 35165), (1235, 23263), (2705, 10621), (2795, 10279), (4085, 7033)]