205122385

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{4051}}^1$

素因数の和:4129

約数の個数: 32

約数和(自身を含む): 285909120

約数和(自身を除く): 80786735

約数列:

[1, 5, 13, 19, 41, 65, 95, 205, 247, 533, 779, 1235, 2665, 3895, 4051, 10127, 20255, 50635, 52663, 76969, 166091, 263315, 384845, 830455, 1000597, 2159183, 3155729, 5002985, 10795915, 15778645, 41024477, 205122385]

約数ペア:

[(1, 205122385), (5, 41024477), (13, 15778645), (19, 10795915), (41, 5002985), (65, 3155729), (95, 2159183), (205, 1000597), (247, 830455), (533, 384845), (779, 263315), (1235, 166091), (2665, 76969), (3895, 52663), (4051, 50635), (10127, 20255)]