164065242520

素因数分解:

$2^3\times 5^1\times {\mathrm{3221}}^1\times {\mathrm{1273403}}^1$

素因数の和:1276635

約数の個数: 32

約数和(自身を含む): 369261691920

約数和(自身を除く): 205196449400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3221, 6442, 12884, 16105, 25768, 32210, 64420, 128840, 1273403, 2546806, 5093612, 6367015, 10187224, 12734030, 25468060, 50936120, 4101631063, 8203262126, 16406524252, 20508155315, 32813048504, 41016310630, 82032621260, 164065242520]

約数ペア:

[(1, 164065242520), (2, 82032621260), (4, 41016310630), (5, 32813048504), (8, 20508155315), (10, 16406524252), (20, 8203262126), (40, 4101631063), (3221, 50936120), (6442, 25468060), (12884, 12734030), (16105, 10187224), (25768, 6367015), (32210, 5093612), (64420, 2546806), (128840, 1273403)]