202608520

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{19709}}^1$

素因数の和:19977

約数の個数: 32

約数和(自身を含む): 457666200

約数和(自身を除く): 255057680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 5140, 10280, 19709, 39418, 78836, 98545, 157672, 197090, 394180, 788360, 5065213, 10130426, 20260852, 25326065, 40521704, 50652130, 101304260, 202608520]

約数ペア:

[(1, 202608520), (2, 101304260), (4, 50652130), (5, 40521704), (8, 25326065), (10, 20260852), (20, 10130426), (40, 5065213), (257, 788360), (514, 394180), (1028, 197090), (1285, 157672), (2056, 98545), (2570, 78836), (5140, 39418), (10280, 19709)]